diff --git a/src/data/propers/common/lauds-capitulum-corpus-christi.yml b/src/data/propers/common/lauds-capitulum-corpus-christi.yml
new file mode 100644
index 0000000..217afeb
--- /dev/null
+++ b/src/data/propers/common/lauds-capitulum-corpus-christi.yml
@@ -0,0 +1,16 @@
+# Corpus Christi's own Lauds chapter (1 Cor 11:23-24) — shared with
+# Vespers via vespersCapitulumForOverride's own cross-hour fallback (see
+# hours/vespers.ts), not duplicated into a separate vespers-capitulum-
+# corpus-christi.yml. Live-verified against Divinum Officium (Monastic
+# Tridentinum 1617), Lauds/Vespers live query, 2026-06-04 (Corpus Christi
+# itself).
+id: lauds-capitulum-corpus-christi
+text:
+  la: "Fratres: Ego enim accépi a Dómino quod et trádidi vobis, quóniam Dóminus Jesus, in qua nocte tradebátur, accépit panem, et grátias agens fregit, et dixit: Accípite et manducáte: hoc est corpus meum, quod pro vobis tradétur: hoc fácite in meam commemoratiónem."
+  en: "Brothers: For I have received of the Lord that which also I delivered unto you, that the Lord Jesus, the same night in which he was betrayed, took bread. And giving thanks, broke, and said: Take ye, and eat: this is my body, which shall be delivered for you: this do for the commemoration of me."
+citation:
+  la: "1 Cor 11:23-24"
+  en: "1 Cor 11:23-24"
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/lauds-capitulum-sacred-heart.yml b/src/data/propers/common/lauds-capitulum-sacred-heart.yml
new file mode 100644
index 0000000..f513132
--- /dev/null
+++ b/src/data/propers/common/lauds-capitulum-sacred-heart.yml
@@ -0,0 +1,17 @@
+# The Sacred Heart's own Lauds chapter (Eph 3:8-9) — shared with Vespers
+# via vespersCapitulumForOverride's own cross-hour fallback (see
+# hours/vespers.ts), not duplicated into a separate vespers-capitulum-
+# sacred-heart.yml. Live-verified against Divinum Officium (Divino
+# Afflatu - 1954), Lauds/Vespers live query, 2026-06-12 (the Sacred
+# Heart itself) — see matins-hymn-sacred-heart.yml's own header on why
+# this track, not Monastic Tridentinum 1617.
+id: lauds-capitulum-sacred-heart
+text:
+  la: "Fratres: Mihi ómnium sanctórum mínimo data est grátia hæc, in géntibus evangelizáre investigábiles divítias Christi; et illumináre omnes, quæ sit dispensátio sacraménti abscónditi a sǽculis in Deo."
+  en: "Brethren: Unto me, who am less than the least of all saints, is this grace given, that I should preach among the Gentiles the unsearchable riches of Christ; and to make all men see what is the fellowship of the Mystery, which from the beginning of the world hath been hid in God."
+citation:
+  la: "Eph 3:8-9"
+  en: "Eph 3:8-9"
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/lauds-hymn-corpus-christi.yml b/src/data/propers/common/lauds-hymn-corpus-christi.yml
new file mode 100644
index 0000000..40c809f
--- /dev/null
+++ b/src/data/propers/common/lauds-hymn-corpus-christi.yml
@@ -0,0 +1,120 @@
+# Corpus Christi's own Lauds hymn ("Verbum supérnum pródiens") — whose
+# final 2 stanzas ("O salutáris hóstia... Uni trinóque Dómino...") are
+# the separately-famous "O Salutaris Hostia" often sung on its own.
+# Distinct from Matins' own ("Sacris solémniis") and Vespers' own
+# ("Pange, lingua, gloriósi Córporis mystérium" — the "Tantum Ergo"
+# hymn). Live-verified against Divinum Officium (Monastic Tridentinum
+# 1617), Lauds live query, 2026-06-04 (Corpus Christi itself). Self-
+# contained — its own final stanza is the hymn's natural theological
+# close, not a separate swappable doxology.
+id: lauds-hymn-corpus-christi
+text:
+  la: >-
+    Verbum supérnum pródiens,
+
+    Nec Patris linquens déxteram,
+
+    Ad opus suum éxiens,
+
+    Venit ad vitæ vésperam.
+
+
+    In mortem a discípulo
+
+    Suis tradéndus ǽmulis,
+
+    Prius in vitæ férculo
+
+    Se trádidit discípulis.
+
+
+    Quibus sub bina spécie
+
+    Carnem dedit et sánguinem;
+
+    Ut dúplicis substántiæ
+
+    Totum cibáret hóminem.
+
+
+    Se nascens dedit sócium,
+
+    Convéscens in edúlium,
+
+    Se móriens in prétium,
+
+    Se regnans dat in prǽmium.
+
+
+    O salutáris hóstia,
+
+    Quæ cæli pandis óstium,
+
+    Bella premunt hostília;
+
+    Da robur, fer auxílium.
+
+
+    Uni trinóque Dómino,
+
+    Sit sempitérna glória:
+
+    Qui vitam sine término
+
+    Nobis donet in pátria. Amen.
+  en: >-
+    The heav'nly Word proceeding forth,
+
+    Yet leaving not the Father's side,
+
+    And going to his work on earth
+
+    Had reached at length life's eventide.
+
+
+    By false disciple to be given
+
+    To foemen for his blood athirst,
+
+    Himself, the living bread from heaven,
+
+    He gave to his disciples first.
+
+
+    To them he gave, in twofold kind,
+
+    His very flesh, his very blood:
+
+    In love's own fullness thus designed
+
+    Of the whole man to be the food.
+
+
+    By birth, our fellow-man was he;
+
+    Our meat, while sitting at the board;
+
+    He died, our ransomer to be;
+
+    He ever reigns, our great reward.
+
+
+    O saving victim, opening wide
+
+    The gate of heaven to man below,
+
+    Our foes press on from every side,
+
+    Thine aid supply, thy strength bestow.
+
+
+    To thy great name be endless praise,
+
+    Immortal Godhead, One in Three;
+
+    O grant us endless length of days
+
+    In our true native land, with thee. Amen.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/lauds-hymn-sacred-heart.yml b/src/data/propers/common/lauds-hymn-sacred-heart.yml
new file mode 100644
index 0000000..af97e92
--- /dev/null
+++ b/src/data/propers/common/lauds-hymn-sacred-heart.yml
@@ -0,0 +1,123 @@
+# The Sacred Heart's own Lauds hymn ("Cor, arca legem cóntinens") —
+# distinct from Matins' own ("Auctor beáte sǽculi") and Vespers' own
+# ("En, ut supérba críminum"). Live-verified against Divinum Officium
+# (Divino Afflatu - 1954), Lauds live query, 2026-06-12 (the Sacred
+# Heart itself) — see matins-hymn-sacred-heart.yml's own header on why
+# this track. Self-contained — its own final stanza is the hymn's
+# natural theological close, not a separate swappable doxology.
+#
+# This day's own Lauds genuinely has no responsory in the source at all
+# (straight from chapter to hymn) — see lauds-capitulum-sacred-heart.yml
+# and hours/lauds.ts's own resolveOffice, which omits the responsory
+# part entirely rather than rendering an empty one.
+id: lauds-hymn-sacred-heart
+text:
+  la: >-
+    Cor, arca legem cóntinens
+
+    Non servitútis véteris,
+
+    Sed grátiæ, sed véniæ,
+
+    Sed et misericórdiæ.
+
+
+    Cor, sanctuárium novi
+
+    Intemerátum fœ́deris,
+
+    Templum vetústo sánctius,
+
+    Velúmque scisso utílius.
+
+
+    Te vulnerátum cáritas
+
+    Ictu paténti vóluit,
+
+    Amóris invisíbilis
+
+    Ut venerémur vúlnera.
+
+
+    Hoc sub amóris sýmbolo
+
+    Passus cruénta et mýstica,
+
+    Utrúmque sacrifícium
+
+    Christus sacérdos óbtulit.
+
+
+    Quis non amántem rédamet?
+
+    Quis non redémptus díligat,
+
+    Et Corde in isto séligat
+
+    Ætérna tabernácula?
+
+
+    Jesu, tibi sit glória,
+
+    Qui Corde fundis grátiam,
+
+    Cum Patre, et almo Spíritu,
+
+    In sempitérna sǽcula. Amen.
+  en: >-
+    Jesus, behind thy temple's veil,
+
+    Hid in an ark of gold,
+
+    On stones engraven, lay the law
+
+    thy finger wrote of old.
+
+
+    But in thy body's temple new,
+
+    thy life-blood's throbbing shrine,
+
+    Held, upon fleshly tables graved,
+
+    The law of love divine.
+
+
+    And when that heart in death was stilled,
+
+    Each temple's veil was riven:
+
+    And lo, within thy love's red shrine,
+
+    To us to look was given.
+
+
+    There make us gaze and see the love
+
+    Which drew thee, for our sake,
+
+    O great high-priest, thyself to God
+
+    A sacrifice to make.
+
+
+    Thou, Saviour, cause that every soul
+
+    Which thou hast loved so well,
+
+    May will within thine open heart
+
+    In life and death to dwell.
+
+
+    Grant it, O Father, only Son,
+
+    And Spirit, God of grace,
+
+    To whom all worship shall be done,
+
+    In every time and place. Amen.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/lauds-responsory-corpus-christi.yml b/src/data/propers/common/lauds-responsory-corpus-christi.yml
new file mode 100644
index 0000000..2fb0354
--- /dev/null
+++ b/src/data/propers/common/lauds-responsory-corpus-christi.yml
@@ -0,0 +1,24 @@
+# Corpus Christi's own Lauds responsory ("Panem cæli dedit eis") —
+# distinct from Vespers' own ("Cibávit illos ex ádipe fruménti", see
+# vespers-responsory-corpus-christi.yml). Live-verified against Divinum
+# Officium (Monastic Tridentinum 1617), Lauds live query, 2026-06-04
+# (Corpus Christi itself).
+id: lauds-responsory-corpus-christi
+text:
+  la: |
+    R.br. Panem cæli dedit eis, * Allelúja, allelúja.
+    R. Panem cæli dedit eis, * Allelúja, allelúja.
+    V. Panem Angelórum manducávit homo.
+    R. Allelúja, allelúja.
+    V. Glória Patri, et Fílio, * et Spirítui Sancto.
+    R. Panem cæli dedit eis, * Allelúja, allelúja.
+  en: |
+    R.br. He gave them the bread of heaven. * Alleluia, Alleluia.
+    R. He gave them the bread of heaven. * Alleluia, Alleluia.
+    V. Man did eat Angels' bread.
+    R. Alleluia, Alleluia.
+    V. Glory be to the Father, and to the Son, * and to the Holy Ghost.
+    R. He gave them the bread of heaven. * Alleluia, Alleluia.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/lauds-versicle-corpus-christi.yml b/src/data/propers/common/lauds-versicle-corpus-christi.yml
new file mode 100644
index 0000000..aeeda11
--- /dev/null
+++ b/src/data/propers/common/lauds-versicle-corpus-christi.yml
@@ -0,0 +1,12 @@
+# Corpus Christi's own Lauds versicle — distinct from Vespers' own
+# ("Panem de cælo præstitísti eis", see
+# vespers-versicle-corpus-christi.yml). Live-verified against Divinum
+# Officium (Monastic Tridentinum 1617), Lauds live query, 2026-06-04
+# (Corpus Christi itself).
+id: lauds-versicle-corpus-christi
+text:
+  la: "V. Pósuit fines tuos pacem, allelúja.\nR. Et ádipe fruménti sátiat te, allelúja."
+  en: "V. He maketh peace in thy borders, alleluia.\nR. And filleth thee with the finest of wheat, alleluia."
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/lauds-versicle-sacred-heart.yml b/src/data/propers/common/lauds-versicle-sacred-heart.yml
new file mode 100644
index 0000000..80473e4
--- /dev/null
+++ b/src/data/propers/common/lauds-versicle-sacred-heart.yml
@@ -0,0 +1,11 @@
+# The Sacred Heart's own versicle — identical at both Lauds and Vespers
+# (see vespers-versicle-sacred-heart.yml). Live-verified against Divinum
+# Officium (Divino Afflatu - 1954), Lauds/Vespers live query, 2026-06-12
+# (the Sacred Heart itself).
+id: lauds-versicle-sacred-heart
+text:
+  la: "V. Hauriétis aquas in gáudio.\nR. De fóntibus Salvatóris."
+  en: "V. With joy shall ye draw water.\nR. Out of the fountains of the Saviour."
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/matins-hymn-corpus-christi.yml b/src/data/propers/common/matins-hymn-corpus-christi.yml
new file mode 100644
index 0000000..7861e6c
--- /dev/null
+++ b/src/data/propers/common/matins-hymn-corpus-christi.yml
@@ -0,0 +1,183 @@
+# Corpus Christi's own Matins hymn ("Sacris solémniis"), St. Thomas
+# Aquinas's own composition for this feast. Live-verified against
+# Divinum Officium (Monastic Tridentinum 1617), Matins live query,
+# 2026-06-04 (Corpus Christi itself). Self-contained — its own final
+# stanza ("Te, trina Déitas...") is the hymn's natural theological
+# close, not a separate swappable doxology.
+#
+# Closes the same real mechanism gap already fixed for Ascension/
+# Pentecost (`corpus-christi` is a temporal-feast id, not a saint
+# record, so `resolveOfficeWinner`'s octave-synthesis needed the same
+# fix already in place — see hours/resolve-common.ts's
+# `ALWAYS_OVERRIDE_TEMPORAL_IDS`).
+id: matins-hymn-corpus-christi
+text:
+  la: >-
+    Sacris solémniis juncta sint gáudia,
+
+    Et ex præcórdiis sonent præcónia;
+
+    Recédant vétera, nova sint ómnia,
+
+    Corda, voces, et ópera.
+
+
+    Noctis recólitur cœna novíssima,
+
+    Qua Christus créditur agnum et ázyma
+
+    Dedísse frátribus, juxta legítima
+
+    Priscis indúlta pátribus.
+
+
+    Post agnum týpicum, explétis épulis,
+
+    Corpus Domínicum datum discípulis,
+
+    Sic totum ómnibus, quod totum síngulis,
+
+    Ejus fatémur mánibus.
+
+
+    Dedit fragílibus córporis férculum,
+
+    Dedit et trístibus sánguinis póculum,
+
+    Dicens: Accípite quod trado vásculum;
+
+    Omnes ex eo bíbite.
+
+
+    Sic sacrifícium istud instítuit,
+
+    Cujus offícium commítti vóluit
+
+    Solis presbýteris, quibus sic cóngruit,
+
+    Ut sumant, et dent céteris.
+
+
+    Panis angélicus fit panis hóminum;
+
+    Dat panis cǽlicus figúris términum;
+
+    O res mirábilis: mandúcat Dóminum
+
+    Pauper, servus et húmilis.
+
+
+    Te, trina Déitas únaque, póscimus;
+
+    Sic nos tu vísita, sicut te cólimus:
+
+    Per tuas sémitas duc nos quo téndimus,
+
+    Ad lucem quam inhábitas. Amen.
+  en: >-
+    At this our solemn feast,
+
+    Let holy joys abound,
+
+    And from the inmost breast
+
+    Let songs of praise resound;
+
+    Let ancient rites depart,
+
+    And all be new around,
+
+    In ev'ry act and voice and heart.
+
+
+    Remember we that eve,
+
+    When, the last supper spread,
+
+    Christ, as we all believe,
+
+    The lamb, with leavenless bread,
+
+    Among his brethren shared,
+
+    And thus the law obeyed,
+
+    Of old unto their sires declared.
+
+
+    The typic lamb consumed,
+
+    The legal feast complete,
+
+    The Lord unto the twelve
+
+    His body gave to eat;
+
+    The whole to all, no less
+
+    The whole to each, did mete
+
+    With his own hands, as we confess.
+
+
+    He gave them, weak and frail,
+
+    His flesh, their food to be;
+
+    On them, downcast and sad,
+
+    His blood bestowèd he:
+
+    And thus to them he spake,
+
+    "Receive this cup from me,
+
+    And all of you of this partake."
+
+
+    So he this sacrifice
+
+    To institute did will,
+
+    And charged his priests alone
+
+    That office to fulfil:
+
+    In them he did confide:
+
+    To whom pertaineth still
+
+    To take, and to the rest divide.
+
+
+    Thus angels' bread is made
+
+    The bread of man today:
+
+    The living bread from heaven
+
+    With figures doth away:
+
+    O wondrous gift indeed!
+
+    The poor and lowly may
+
+    Upon their Lord and Master feed.
+
+
+    O Triune Deity,
+
+    To thee we meekly pray,
+
+    So mayst thou visit us,
+
+    As we our homage pay;
+
+    And in thy footsteps bright
+
+    Conduct us on our way
+
+    To where thou dwell'st in cloudless light. Amen.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/matins-hymn-sacred-heart.yml b/src/data/propers/common/matins-hymn-sacred-heart.yml
new file mode 100644
index 0000000..c54666d
--- /dev/null
+++ b/src/data/propers/common/matins-hymn-sacred-heart.yml
@@ -0,0 +1,125 @@
+# The Sacred Heart's own Matins hymn ("Auctor beáte sǽculi"). Live-
+# verified against Divinum Officium (Divino Afflatu - 1954, 2026-06-12,
+# the Sacred Heart itself) — not the Monastic Tridentinum 1617 track,
+# which doesn't observe this feast on the same date at all (live-
+# checked: shows St. Barnabas instead, unaffected). This project's own
+# rubric/precedence track is Divino Afflatu anyway (see the repo's
+# CLAUDE.md), so this is a real, consistent source choice, not a
+# deviation. Self-contained — its own final stanza is the hymn's natural
+# theological close, not a separate swappable doxology.
+#
+# Closes the same real mechanism gap already fixed for Ascension/
+# Pentecost/Corpus Christi (`sacred-heart` is a temporal-feast id, not a
+# saint record — see hours/resolve-common.ts's
+# `ALWAYS_OVERRIDE_TEMPORAL_IDS`).
+id: matins-hymn-sacred-heart
+text:
+  la: >-
+    Auctor beáte sǽculi,
+
+    Christe, Redémptor ómnium,
+
+    Lumen Patris de lúmine,
+
+    Deúsque verus de Deo.
+
+
+    Amor coégit te tuus
+
+    Mortále corpus súmere,
+
+    Ut novus Adam rédderes,
+
+    Quod vetus ille abstúlerat.
+
+
+    Ille amor, almus ártifex
+
+    Terræ marísque, et síderum,
+
+    Erráta patrum míserans,
+
+    Et nostra rumpens víncula.
+
+
+    Non Corde discédat tuo
+
+    Vis illa amóris íncliti:
+
+    Hoc fonte gentes háuriant
+
+    Remissiónis grátiam.
+
+
+    Percússum ad hoc est láncea,
+
+    Passúmque ad hoc est vúlnera:
+
+    Ut nos laváret sórdibus,
+
+    Unda fluénte, et sánguine.
+
+
+    Jesu, tibi sit glória,
+
+    Qui Corde fundis grátiam,
+
+    Cum Patre, et almo Spíritu,
+
+    In sempitérna sǽcula. Amen.
+  en: >-
+    O Christ, the world's Creator bright,
+
+    Who didst mankind from sin redeem,
+
+    Light from the Father's glorious light,
+
+    True God of God, in bliss supreme.
+
+
+    Thy love compelled thee to assume
+
+    A mortal body, man to save;
+
+    Reversing the old Adam's doom;
+
+    Our ransom the new Adam gave.
+
+
+    That love which gloriously framed all
+
+    The earth, the stars, and wondrous sea
+
+    Took pity on our parents' fall,
+
+    Broke all our bonds and set us free.
+
+
+    O Saviour, let thy potent love
+
+    Flow ever from thy bounteous heart;
+
+    To nations that pure fount above
+
+    The grace of pardon will impart.
+
+
+    His heart for this was opened wide,
+
+    And wounded by the soldier's spear,
+
+    That freely from his sacred side
+
+    Might flow the streams our souls to clear.
+
+
+    Glory to Father and to Son,
+
+    And to the Holy Ghost the same,
+
+    To whom all power, when time is done,
+
+    And endless rule, in endless fame. Amen.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/vespers-hymn-corpus-christi.yml b/src/data/propers/common/vespers-hymn-corpus-christi.yml
new file mode 100644
index 0000000..e3b996a
--- /dev/null
+++ b/src/data/propers/common/vespers-hymn-corpus-christi.yml
@@ -0,0 +1,169 @@
+# Corpus Christi's own Vespers hymn ("Pange, lingua, gloriósi Córporis
+# mystérium") — St. Thomas Aquinas's own Eucharistic hymn, whose final 2
+# stanzas ("Tantum ergo Sacraméntum..." — sung genuflecting per the
+# source's own rubric, not modeled here) are the separately-famous
+# "Tantum Ergo" sung constantly at Benediction. Distinct from Matins'
+# own ("Sacris solémniis") and Lauds' own ("Verbum supérnum pródiens").
+# Live-verified against Divinum Officium (Monastic Tridentinum 1617),
+# Vespers live query, 2026-06-04 (Corpus Christi itself). Self-contained
+# — its own final stanza is the hymn's natural theological close, not a
+# separate swappable doxology.
+id: vespers-hymn-corpus-christi
+text:
+  la: >-
+    Pange, lingua, gloriósi
+
+    Córporis mystérium,
+
+    Sanguinísque pretiósi,
+
+    Quem in mundi prétium
+
+    Fructus ventris generósi
+
+    Rex effúdit géntium.
+
+
+    Nobis datus, nobis natus
+
+    Ex intácta Vírgine,
+
+    Et in mundo conversátus,
+
+    Sparso verbi sémine,
+
+    Sui moras incolátus
+
+    Miro clausit órdine.
+
+
+    In suprémæ nocte cenæ
+
+    Recúmbens cum frátribus,
+
+    Observáta lege plene
+
+    Cibis in legálibus,
+
+    Cibum turbæ duodénæ
+
+    Se dat suis mánibus.
+
+
+    Verbum caro, panem verum
+
+    Verbo carnem éfficit;
+
+    Fitque sanguis Christi merum:
+
+    Et si sensus déficit,
+
+    Ad firmándum cor sincérum
+
+    Sola fides súfficit.
+
+
+    Tantum ergo Sacraméntum
+
+    Venerémur cérnui:
+
+    Et antíquum documéntum
+
+    Novo cedat rítui:
+
+    Præstet fides suppleméntum
+
+    Sénsuum deféctui.
+
+
+    Genitóri, Genitóque
+
+    Laus et jubilátio,
+
+    Salus, honor, virtus quoque
+
+    Sit et benedíctio:
+
+    Procedénti ab utróque
+
+    Compar sit laudátio. Amen.
+  en: >-
+    Sing, my tongue, the Saviour's glory,
+
+    Of his flesh the mystery sing;
+
+    Of the blood, all price exceeding,
+
+    Shed by our immortal King,
+
+    Destined, for the world's redemption,
+
+    From a noble womb to spring.
+
+
+    Of a pure and spotless Virgin
+
+    Born for us on earth below,
+
+    He, as man, with man conversing,
+
+    Stayed, the seeds of truth to sow;
+
+    Then he closed in solemn order
+
+    Wondrously his life of woe.
+
+
+    On the night of that last supper
+
+    Seated with his chosen band,
+
+    He, the paschal victim eating,
+
+    First fulfills the law's command:
+
+    Then as food to all his brethren
+
+    Gives himself with his own hand.
+
+
+    Word made flesh, the bread of nature
+
+    By his word to flesh he turns;
+
+    Wine into his blood he changes:
+
+    What though sense no change discerns?
+
+    Only be the heart in earnest,
+
+    Faith her lesson quickly learns.
+
+
+    Down in adoration falling,
+
+    Lo! the sacred Host we hail;
+
+    Lo! o'er ancient forms departing,
+
+    Newer rites of grace prevail;
+
+    Faith for all defects supplying,
+
+    Where the feeble senses fail.
+
+
+    To the everlasting Father,
+
+    And the Son who reigns on high,
+
+    With the Holy Ghost proceeding
+
+    Forth from each eternally,
+
+    Be salvation, honour, blessing,
+
+    Might, and endless majesty. Amen.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/vespers-hymn-sacred-heart.yml b/src/data/propers/common/vespers-hymn-sacred-heart.yml
new file mode 100644
index 0000000..75906e1
--- /dev/null
+++ b/src/data/propers/common/vespers-hymn-sacred-heart.yml
@@ -0,0 +1,123 @@
+# The Sacred Heart's own Vespers hymn ("En, ut supérba críminum") —
+# distinct from Matins' own ("Auctor beáte sǽculi") and Lauds' own
+# ("Cor, arca legem cóntinens"). Live-verified against Divinum Officium
+# (Divino Afflatu - 1954), Vespers live query, 2026-06-12 (the Sacred
+# Heart itself) — see matins-hymn-sacred-heart.yml's own header on why
+# this track. Self-contained — its own final stanza is the hymn's
+# natural theological close, not a separate swappable doxology.
+#
+# This day's own Vespers genuinely has no responsory in the source at
+# all (straight from chapter to hymn), same as its own Lauds — see
+# hours/vespers.ts's own resolveOffice, which omits the responsory part
+# entirely rather than rendering an empty one.
+id: vespers-hymn-sacred-heart
+text:
+  la: >-
+    En, ut supérba críminum
+
+    Et sæva nostrórum cohors
+
+    Cor sauciávit ínnocens
+
+    Meréntis haud tale Dei!
+
+
+    Vibrántis hastam mílitis
+
+    Peccáta nostra dírigunt,
+
+    Ferrúmque diræ cúspidis
+
+    Mortále crimen ácuit.
+
+
+    Ex Corde scisso Ecclésia,
+
+    Christo jugáta, náscitur:
+
+    Hoc óstium arcæ in látere est
+
+    Genti ad salútem pósitum.
+
+
+    Ex hoc perénnis grátia,
+
+    Ceu septifórmis flúvius,
+
+    Stolas ut illic sórdidas
+
+    Lavémus Agni in sánguine.
+
+
+    Turpe est redíre ad crímina,
+
+    Quæ Cor beátum lácerent:
+
+    Sed æmulémur córdibus
+
+    Flammas amóris índices.
+
+
+    Jesu, tibi sit glória,
+
+    Qui Corde fundis grátiam,
+
+    Cum Patre, et almo Spíritu,
+
+    In sempitérna sǽcula. Amen.
+  en: >-
+    Lo, how the savage crew
+
+    Of our proud sins hath rent
+
+    The heart of our all-gracious God,
+
+    That heart so innocent.
+
+
+    The soldier's quivering lance
+
+    Our guilt it was that drave,
+
+    Our wicked deeds that to its point
+
+    Such cruel sharpness gave.
+
+
+    O wounded heart, whence sprang
+
+    The Church, the Saviour's bride;
+
+    Thou door of our salvation's ark
+
+    Set in its mystic side.
+
+
+    Thou holy fount, whence flows
+
+    The sacred sevenfold flood,
+
+    Where we our filthy robes may cleanse
+
+    In the Lamb's saving blood:
+
+
+    By sorrowful relapse,
+
+    thee will we rend no more;
+
+    But like the flames, those types of love,
+
+    Strive heavenward to soar.
+
+
+    Father and Son supreme
+
+    And Spirit, hear our cry;
+
+    Whose is the kingdom, praise and power,
+
+    Through all eternity. Amen.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/vespers-responsory-corpus-christi.yml b/src/data/propers/common/vespers-responsory-corpus-christi.yml
new file mode 100644
index 0000000..c6e8d23
--- /dev/null
+++ b/src/data/propers/common/vespers-responsory-corpus-christi.yml
@@ -0,0 +1,24 @@
+# Corpus Christi's own Vespers responsory ("Cibávit illos ex ádipe
+# fruménti") — distinct from Lauds' own ("Panem cæli dedit eis", see
+# lauds-responsory-corpus-christi.yml). Live-verified against Divinum
+# Officium (Monastic Tridentinum 1617), Vespers live query, 2026-06-04
+# (Corpus Christi itself).
+id: vespers-responsory-corpus-christi
+text:
+  la: |
+    R.br. Cibávit illos ex ádipe fruménti, * Allelúja, allelúja.
+    R. Cibávit illos ex ádipe fruménti, * Allelúja, allelúja.
+    V. Et de petra, melle saturávit eos.
+    R. Allelúja, allelúja.
+    V. Glória Patri, et Fílio, * et Spirítui Sancto.
+    R. Cibávit illos ex ádipe fruménti, * Allelúja, allelúja.
+  en: |
+    R.br. He fed them with the finest of the wheat. * Alleluia, Alleluia.
+    R. He fed them with the finest of the wheat. * Alleluia, Alleluia.
+    V. And with honey out of the rock did He satisfy them.
+    R. Alleluia, Alleluia.
+    V. Glory be to the Father, and to the Son, * and to the Holy Ghost.
+    R. He fed them with the finest of the wheat. * Alleluia, Alleluia.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/vespers-versicle-corpus-christi.yml b/src/data/propers/common/vespers-versicle-corpus-christi.yml
new file mode 100644
index 0000000..c8c3bc4
--- /dev/null
+++ b/src/data/propers/common/vespers-versicle-corpus-christi.yml
@@ -0,0 +1,11 @@
+# Corpus Christi's own Vespers versicle — distinct from Lauds' own
+# ("Pósuit fines tuos pacem", see lauds-versicle-corpus-christi.yml).
+# Live-verified against Divinum Officium (Monastic Tridentinum 1617),
+# Vespers live query, 2026-06-04 (Corpus Christi itself).
+id: vespers-versicle-corpus-christi
+text:
+  la: "V. Panem de cælo præstitísti eis, allelúja.\nR. Omne delectaméntum in se habéntem, allelúja."
+  en: "V. Thou didst send them from heaven, alleluia.\nR. Bread able to content every man's delight, alleluia."
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/vespers-versicle-sacred-heart.yml b/src/data/propers/common/vespers-versicle-sacred-heart.yml
new file mode 100644
index 0000000..8e8a8a6
--- /dev/null
+++ b/src/data/propers/common/vespers-versicle-sacred-heart.yml
@@ -0,0 +1,11 @@
+# The Sacred Heart's own versicle — identical at both Vespers and Lauds
+# (see lauds-versicle-sacred-heart.yml). Live-verified against Divinum
+# Officium (Divino Afflatu - 1954), Vespers live query, 2026-06-12 (the
+# Sacred Heart itself).
+id: vespers-versicle-sacred-heart
+text:
+  la: "V. Hauriétis aquas in gáudio.\nR. De fóntibus Salvatóris."
+  en: "V. With joy shall ye draw water.\nR. Out of the fountains of the Saviour."
+status:
+  la: verified
+  en: verified
diff --git a/src/hours/lauds.ts b/src/hours/lauds.ts
index d6aa4de..4bf36ad 100644
--- a/src/hours/lauds.ts
+++ b/src/hours/lauds.ts
@@ -321,12 +321,18 @@ function resolveLaudsHymn(day: LiturgicalDay, key: string): ResolvedText {
 function resolveOffice(day: LiturgicalDay): ResolvedPart[] {
   const bundle = resolveOfficeBundle('lauds', day);
   if (bundle) {
-    return [
-      { kind: 'chapter', text: bundle.chapter },
-      { kind: 'responsory', text: bundle.responsory },
-      { kind: 'hymn', text: bundle.hymn },
-      { kind: 'versicle', text: bundle.versicle },
-    ];
+    const parts: ResolvedPart[] = [{ kind: 'chapter', text: bundle.chapter }];
+    // The Sacred Heart's own Lauds genuinely has no responsory at all in
+    // the source (live-verified, Divino Afflatu 1954, 2026-06-12: straight
+    // from chapter to hymn, "Capitulum Hymnus Versus" with no
+    // "Responsorium" in between) — an intentionally missing part, not an
+    // unauthored one, so omitted from the page entirely rather than
+    // rendering an empty section.
+    if (bundle.responsory.status.la !== 'missing' || bundle.responsory.status.en !== 'missing') {
+      parts.push({ kind: 'responsory', text: bundle.responsory });
+    }
+    parts.push({ kind: 'hymn', text: bundle.hymn }, { kind: 'versicle', text: bundle.versicle });
+    return parts;
   }
   const seasonSuffix = seasonalOfficeSuffix(day.season);
   const key = seasonSuffix ?? day.weekday;
diff --git a/src/hours/resolve-common.ts b/src/hours/resolve-common.ts
index d6b1cf0..20cd137 100644
--- a/src/hours/resolve-common.ts
+++ b/src/hours/resolve-common.ts
@@ -62,6 +62,8 @@ export const ALWAYS_OVERRIDE_TEMPORAL_IDS = new Set([
   'immaculate-heart-of-mary',
   'ascension',
   'pentecost-sunday',
+  'corpus-christi',
+  'sacred-heart',
   'circumcision',
   'holy-name-of-jesus',
   'vigil-of-christmas',
diff --git a/src/hours/vespers.ts b/src/hours/vespers.ts
index 40e93e7..2328f2c 100644
--- a/src/hours/vespers.ts
+++ b/src/hours/vespers.ts
@@ -229,12 +229,14 @@ function resolveVespersHymn(day: LiturgicalDay, key: string): ResolvedText {
 function resolveOffice(day: LiturgicalDay): ResolvedPart[] {
   const bundle = resolveOfficeBundle('vespers', day, vespersCapitulumForOverride);
   if (bundle) {
-    return [
-      { kind: 'chapter', text: bundle.chapter },
-      { kind: 'responsory', text: bundle.responsory },
-      { kind: 'hymn', text: bundle.hymn },
-      { kind: 'versicle', text: bundle.versicle },
-    ];
+    const parts: ResolvedPart[] = [{ kind: 'chapter', text: bundle.chapter }];
+    // The Sacred Heart's own Vespers genuinely has no responsory at all in
+    // the source, same as its own Lauds — see lauds.ts's identical check.
+    if (bundle.responsory.status.la !== 'missing' || bundle.responsory.status.en !== 'missing') {
+      parts.push({ kind: 'responsory', text: bundle.responsory });
+    }
+    parts.push({ kind: 'hymn', text: bundle.hymn }, { kind: 'versicle', text: bundle.versicle });
+    return parts;
   }
   const seasonSuffix = seasonalOfficeSuffix(day.season);
   const key = seasonSuffix ?? day.weekday;
diff --git a/tests/hours/lauds.test.ts b/tests/hours/lauds.test.ts
index 7558e41..8b8fb27 100644
--- a/tests/hours/lauds.test.ts
+++ b/tests/hours/lauds.test.ts
@@ -6,7 +6,7 @@ import { getLaudsCommonOverride } from '../../src/hours/lauds-psalmody-overrides
 // and src/hours/lauds.ts's own generation-script provenance comments for
 // why these particular dates.
 const FERIAL_SUNDAY = '2026-06-21';
-const FERIAL_MONDAY = '2026-06-08'; // not 08-31 -- St. Raymond Nonnatus's own day (common-of-a-confessor)
+const FERIAL_MONDAY = '2026-09-07'; // not 2026-06-08 -- that fell inside Corpus Christi's own octave once its own hymnody was modeled 2026-09-04, see TODO.md; not 08-31 either -- St. Raymond Nonnatus's own day (common-of-a-confessor)
 const FERIAL_TUESDAY = '2033-09-06'; // not 2026-06-16 -- that fell inside Sacred Heart's own octave once modeled 2026-08-26, see TODO.md
 const LAWRENCE_OCTAVE_DAY = '2026-08-11'; // Semiduplex -- exercises isDoubleOrHigher's false branch differently than a plain feria only in rank, not in psalms (Commune override not modeled, see below)
 
diff --git a/tests/hours/vespers.test.ts b/tests/hours/vespers.test.ts
index e61d0da..882f842 100644
--- a/tests/hours/vespers.test.ts
+++ b/tests/hours/vespers.test.ts
@@ -524,15 +524,23 @@ describe('resolveOrdo("vespers", ...)', () => {
     // to the octave -- and Jun 9 itself is *also* inside the same
     // octave, already having lost its own Simplex saint (Ss. Primus and
     // Felicianus) to it, so neither day has any sanctoral winner left to
-    // anticipate. Jun 9's evening falls all the way through to the plain
-    // ferial Vespers default (Trinity week's own governing chapter/hymn),
-    // with both Primus & Felicianus and Corpus Christi's octave merely
-    // commemorated, not any widow-specific content at all.
+    // anticipate.
+    //
+    // Corrected 2026-09-04: Jun 9's evening does NOT fall through to the
+    // plain ferial Vespers default -- that was this test's own original,
+    // never-actually-verified guess, documenting the same real
+    // resolveOfficeWinner gap already fixed for Ascension/Pentecost (see
+    // TODO.md): a temporal-feast octave (Corpus Christi, no saint
+    // record) wasn't being recognized on ordinary-feria days within it.
+    // Live-verified against Divinum Officium (Monastic Tridentinum 1617,
+    // 2026-06-09, "Feria Tertia infra Octavam Corporis Christi"): the
+    // real content is Corpus Christi's own chapter/hymn ("ex Commune aut
+    // Festo" in the source), not Trinity week's own governing default.
     const ordo = resolveOrdo('vespers', '2026-06-09');
     const chapter = ordo.parts.find((p) => p.kind === 'chapter');
-    expect(chapter?.kind === 'chapter' ? chapter.text.citation?.en : undefined).toBe('2 Cor 1:3-4');
+    expect(chapter?.kind === 'chapter' ? chapter.text.citation?.en : undefined).toBe('1 Cor 11:23-24');
     const hymn = ordo.parts.find((p) => p.kind === 'hymn');
-    expect(hymn?.kind === 'hymn' ? hymn.text.text.la : undefined).toContain('Tellúris ingens Cónditor');
+    expect(hymn?.kind === 'hymn' ? hymn.text.text.la : undefined).toContain('Pange, lingua, gloriósi');
   });
 
   it("uses common-of-the-bvm's real office bundle for Our Lady of Mount Carmel's First Vespers", () => {