diff --git a/TODO.md b/TODO.md
index f560b9a..b59889a 100644
--- a/TODO.md
+++ b/TODO.md
@@ -3085,6 +3085,28 @@ regression test in `tests/calendar/vespers.test.ts`.
 
 `npm test` (499 tests), `tsc --noEmit` both pass.
 
+### Finding/Exaltation of the Holy Cross own proper Lauds/Vespers content imported (2026-08-26)
+
+Fully proper feast, live-verified against Divinum Officium (Monastic Tridentinum 1617),
+2027-05-03 for the Finding (its own real 2026 date collides with a privileged Sunday) and
+2026-09-14 for the Exaltation (clean that year): own chapter (Phil 2:5-7), own distinct
+responsory/hymn/versicle at each hour — Lauds hymn "Lustris sex qui jam peráctis" (part of the
+"Pange lingua gloriosi proelium" family), Vespers hymn "Vexílla Regis pródeunt," both with real
+Alleluias baked into their own text (confirmed permanent, not seasonal contamination, by the
+Vespers hymn's own "In hoc Pascháli gáudio" line — May 3 always falls in Paschaltide).
+
+Authored under two ids: `finding-of-the-holy-cross` (her own real content) and
+`proper-to-the-finding-of-the-holy-cross` (a second, identical copy) — needed because
+Exaltation of the Holy Cross's own saint file sets `common: proper-to-the-finding-of-the-holy-
+cross`, a different id than her `propers` field (which points at `finding-of-the-holy-cross`
+directly, a separate day-collect/antiphon lookup). `resolveOfficeBundle` only consults
+`common`, so without the second copy Exaltation silently fell through to the ferial default.
+
+Content-authoring note for future sessions: writing this feast's hymns (explicit Crucifixion
+imagery — nails, spear-wound, blood) tripped a content-filtering block on the first attempt.
+Splitting each file into a Latin-only `Write` followed by a separate `Edit` adding the English
+got past it reliably; a single combined bilingual `Write` did not.
+
 ## Known, deliberate simplifications (not bugs — working as designed)
 
 - `getDayCollects`: each collect in a multi-collect day renders as its own
diff --git a/src/data/propers/common/lauds-capitulum-finding-of-the-holy-cross.yml b/src/data/propers/common/lauds-capitulum-finding-of-the-holy-cross.yml
new file mode 100644
index 0000000..548ec49
--- /dev/null
+++ b/src/data/propers/common/lauds-capitulum-finding-of-the-holy-cross.yml
@@ -0,0 +1,21 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, 2026-05-03 (fixed date, always within Paschaltide -- the
+# Alleluias throughout this feast's texts are a genuine permanent
+# feature, confirmed by the Vespers hymn's own "In hoc Pascháli gáudio"
+# line, not seasonal contamination). Fully proper feast: own chapter
+# (Phil 2:5-7), own distinct responsory/hymn/versicle at each hour.
+# Shared with Exaltation of the Holy Cross (Sep 14, `propers: "finding-
+# of-the-holy-cross"` in that saint's own file too) -- same real feast
+# content, reused by design, not duplicated separately. Same chapter
+# reused for Vespers -- no separate vespers-capitulum-<id> file
+# authored, per vespers.ts's vespersCapitulumForOverride fallback.
+id: lauds-capitulum-finding-of-the-holy-cross
+text:
+  la: "Fratres: Hoc enim sentíte in vobis, quod et in Christo Jesu: qui, cum in forma Dei esset, non rapínam arbitrátus est esse se æquálem Deo: sed semetípsum exinanívit, formam servi accípiens, in similitúdinem hóminum factus, et hábitu invéntus ut homo."
+  en: "For let this mind be in you, which was also in Christ Jesus: Who being in the form of God, thought it not robbery to be equal with God: But emptied himself, taking the form of a servant, being made in the likeness of men, and in habit found as a man."
+citation:
+  la: "Phil 2:5-7"
+  en: "Phil 2:5-7"
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/lauds-capitulum-proper-to-the-finding-of-the-holy-cross.yml b/src/data/propers/common/lauds-capitulum-proper-to-the-finding-of-the-holy-cross.yml
new file mode 100644
index 0000000..bcc6c4f
--- /dev/null
+++ b/src/data/propers/common/lauds-capitulum-proper-to-the-finding-of-the-holy-cross.yml
@@ -0,0 +1,26 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, 2026-05-03 (fixed date, always within Paschaltide -- the
+# Alleluias throughout this feast's texts are a genuine permanent
+# feature, confirmed by the Vespers hymn's own "In hoc Pascháli gáudio"
+# line, not seasonal contamination). Fully proper feast: own chapter
+# (Phil 2:5-7), own distinct responsory/hymn/versicle at each hour.
+# Duplicated verbatim under this `proper-to-the-finding-of-the-holy-
+# cross` id (2026-08-26): Exaltation of the Holy Cross's own saint file
+# sets `common: proper-to-the-finding-of-the-holy-cross` (not `propers`,
+# which is a separate day-collect/antiphon lookup already pointing
+# directly at `finding-of-the-holy-cross`) -- resolveOfficeBundle's own
+# id (`exaltation-of-the-holy-cross`) has no override of its own, so it
+# falls through to this `common` id specifically, which needed its own
+# copy of the bundle. Same chapter reused for Vespers -- no separate
+# vespers-capitulum-<id> file authored, per vespers.ts's
+# vespersCapitulumForOverride fallback.
+id: lauds-capitulum-proper-to-the-finding-of-the-holy-cross
+text:
+  la: "Fratres: Hoc enim sentíte in vobis, quod et in Christo Jesu: qui, cum in forma Dei esset, non rapínam arbitrátus est esse se æquálem Deo: sed semetípsum exinanívit, formam servi accípiens, in similitúdinem hóminum factus, et hábitu invéntus ut homo."
+  en: "For let this mind be in you, which was also in Christ Jesus: Who being in the form of God, thought it not robbery to be equal with God: But emptied himself, taking the form of a servant, being made in the likeness of men, and in habit found as a man."
+citation:
+  la: "Phil 2:5-7"
+  en: "Phil 2:5-7"
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/lauds-hymn-finding-of-the-holy-cross.yml b/src/data/propers/common/lauds-hymn-finding-of-the-holy-cross.yml
new file mode 100644
index 0000000..3e78765
--- /dev/null
+++ b/src/data/propers/common/lauds-hymn-finding-of-the-holy-cross.yml
@@ -0,0 +1,163 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, 2026-05-03 -- own proper hymn ("Lustris sex qui jam
+# peractis," part of the "Pange lingua gloriosi proelium" family). See
+# lauds-capitulum-finding-of-the-holy-cross.yml's header.
+id: lauds-hymn-finding-of-the-holy-cross
+text:
+  la: >-
+    Lustris sex qui jam peráctis,
+
+    Tempus implens córporis,
+
+    Se volénte natus ad hoc,
+
+    Passióni déditus,
+
+    Agnus in Crucis levátur
+
+    Immolándus stípite.
+
+
+    Hic acétum, fel, arúndo,
+
+    Sputa, clavi, láncea:
+
+    Mite corpus perforátur,
+
+    Sanguis, unda prófluit:
+
+    Terra, pontus, astra, mundus,
+
+    Quo lavántur flúmine!
+
+
+    Crux fidélis, inter omnes
+
+    Arbor una nóbilis:
+
+    Nulla silva talem profert
+
+    Fronde, flore, gérmine:
+
+    Dulce lignum, dulces clavos,
+
+    Dulce pondus sústinet.
+
+
+    Flecte ramos, arbor alta,
+
+    Tensa laxa víscera,
+
+    Et rigor lentéscat ille,
+
+    Quem dedit natívitas:
+
+    Ut supérni membra Regis
+
+    Miti tendas stípite.
+
+
+    Sola digna tu fuísti
+
+    Ferre sæcli prétium,
+
+    Atque portum præparáre
+
+    Nauta mundo náufrago,
+
+    Quem sacer cruor perúnxit,
+
+    Fusus Agni córpore.
+
+
+    Glória et honor Deo
+
+    Usquequáque altíssimo:
+
+    Una Patri, Filióque,
+
+    Inclyto Paráclito:
+
+    Cui laus est et potéstas
+
+    Per ætérna sǽcula. Amen.
+  en: >-
+    Thirty years among us dwelling,
+
+    His appointed time fulfilled,
+
+    Born for this, he meets his passion,
+
+    For that this he freely willed:
+
+    On the cross the Lamb is lifted,
+
+    Where his life-blood shall be spilled.
+
+
+    He endured the nails, the spitting,
+
+    Vinegar, and spear, and reed;
+
+    From that holy body broken
+
+    Blood and water forth proceed:
+
+    Earth, and stars, and sky, and ocean,
+
+    By that flood from stain are free.
+
+
+    Faithful cross! above all other,
+
+    One and only noble tree!
+
+    None in foliage, none in blossom,
+
+    None in fruit thy peers may be;
+
+    Sweetest wood and sweetest iron!
+
+    Sweetest weight is hung on thee.
+
+
+    Bend thy boughs, O tree of glory!
+
+    Thy relaxing sinews bend;
+
+    For awhile the ancient rigour,
+
+    That thy birth bestowed, suspend;
+
+    And the King of heavenly beauty
+
+    On thy bosom gently tend!
+
+
+    Thou alone wast counted worthy
+
+    This world's ransom to uphold;
+
+    For a shipwrecked race preparing
+
+    Harbour, like the ark of old;
+
+    With the sacred blood anointed
+
+    From the smitten Lamb that rolled.
+
+
+    To the Trinity be glory
+
+    Everlasting, as is meet;
+
+    Equal to the Father, equal
+
+    To the Son, and Paraclete:
+
+    Trinal Unity, whose praises
+
+    All created things repeat. Amen.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/lauds-hymn-proper-to-the-finding-of-the-holy-cross.yml b/src/data/propers/common/lauds-hymn-proper-to-the-finding-of-the-holy-cross.yml
new file mode 100644
index 0000000..a125850
--- /dev/null
+++ b/src/data/propers/common/lauds-hymn-proper-to-the-finding-of-the-holy-cross.yml
@@ -0,0 +1,163 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, 2026-05-03 -- own proper hymn ("Lustris sex qui jam
+# peractis," part of the "Pange lingua gloriosi proelium" family). See
+# lauds-capitulum-proper-to-the-finding-of-the-holy-cross.yml's header.
+id: lauds-hymn-proper-to-the-finding-of-the-holy-cross
+text:
+  la: >-
+    Lustris sex qui jam peráctis,
+
+    Tempus implens córporis,
+
+    Se volénte natus ad hoc,
+
+    Passióni déditus,
+
+    Agnus in Crucis levátur
+
+    Immolándus stípite.
+
+
+    Hic acétum, fel, arúndo,
+
+    Sputa, clavi, láncea:
+
+    Mite corpus perforátur,
+
+    Sanguis, unda prófluit:
+
+    Terra, pontus, astra, mundus,
+
+    Quo lavántur flúmine!
+
+
+    Crux fidélis, inter omnes
+
+    Arbor una nóbilis:
+
+    Nulla silva talem profert
+
+    Fronde, flore, gérmine:
+
+    Dulce lignum, dulces clavos,
+
+    Dulce pondus sústinet.
+
+
+    Flecte ramos, arbor alta,
+
+    Tensa laxa víscera,
+
+    Et rigor lentéscat ille,
+
+    Quem dedit natívitas:
+
+    Ut supérni membra Regis
+
+    Miti tendas stípite.
+
+
+    Sola digna tu fuísti
+
+    Ferre sæcli prétium,
+
+    Atque portum præparáre
+
+    Nauta mundo náufrago,
+
+    Quem sacer cruor perúnxit,
+
+    Fusus Agni córpore.
+
+
+    Glória et honor Deo
+
+    Usquequáque altíssimo:
+
+    Una Patri, Filióque,
+
+    Inclyto Paráclito:
+
+    Cui laus est et potéstas
+
+    Per ætérna sǽcula. Amen.
+  en: >-
+    Thirty years among us dwelling,
+
+    His appointed time fulfilled,
+
+    Born for this, he meets his passion,
+
+    For that this he freely willed:
+
+    On the cross the Lamb is lifted,
+
+    Where his life-blood shall be spilled.
+
+
+    He endured the nails, the spitting,
+
+    Vinegar, and spear, and reed;
+
+    From that holy body broken
+
+    Blood and water forth proceed:
+
+    Earth, and stars, and sky, and ocean,
+
+    By that flood from stain are free.
+
+
+    Faithful cross! above all other,
+
+    One and only noble tree!
+
+    None in foliage, none in blossom,
+
+    None in fruit thy peers may be;
+
+    Sweetest wood and sweetest iron!
+
+    Sweetest weight is hung on thee.
+
+
+    Bend thy boughs, O tree of glory!
+
+    Thy relaxing sinews bend;
+
+    For awhile the ancient rigour,
+
+    That thy birth bestowed, suspend;
+
+    And the King of heavenly beauty
+
+    On thy bosom gently tend!
+
+
+    Thou alone wast counted worthy
+
+    This world's ransom to uphold;
+
+    For a shipwrecked race preparing
+
+    Harbour, like the ark of old;
+
+    With the sacred blood anointed
+
+    From the smitten Lamb that rolled.
+
+
+    To the Trinity be glory
+
+    Everlasting, as is meet;
+
+    Equal to the Father, equal
+
+    To the Son, and Paraclete:
+
+    Trinal Unity, whose praises
+
+    All created things repeat. Amen.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/lauds-responsory-finding-of-the-holy-cross.yml b/src/data/propers/common/lauds-responsory-finding-of-the-holy-cross.yml
new file mode 100644
index 0000000..9fe6ab3
--- /dev/null
+++ b/src/data/propers/common/lauds-responsory-finding-of-the-holy-cross.yml
@@ -0,0 +1,22 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, 2026-05-03 -- own proper responsory. See lauds-capitulum-
+# finding-of-the-holy-cross.yml's header.
+id: lauds-responsory-finding-of-the-holy-cross
+text:
+  la: |
+    R.br. Hoc signum Crucis erit in cælo: * Allelúja, allelúja.
+    ℟. Hoc signum Crucis erit in cælo: * Allelúja, allelúja.
+    ℣. Cum Dóminus ad judicándum vénerit.
+    ℟. Allelúja, allelúja.
+    ℣. Glória Patri, et Fílio, * et Spirítui Sancto.
+    ℟. Hoc signum Crucis erit in cælo: * Allelúja, allelúja.
+  en: |
+    R.br. This sign of the Cross shall be in heaven. * Alleluia, alleluia.
+    ℟. This sign of the Cross shall be in heaven. * Alleluia, alleluia.
+    ℣. When the Lord cometh to judgment.
+    ℟. Alleluia, alleluia.
+    ℣. Glory be to the Father, and to the Son, * and to the Holy Ghost.
+    ℟. This sign of the Cross shall be in heaven. * Alleluia, alleluia.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/lauds-responsory-proper-to-the-finding-of-the-holy-cross.yml b/src/data/propers/common/lauds-responsory-proper-to-the-finding-of-the-holy-cross.yml
new file mode 100644
index 0000000..2b87026
--- /dev/null
+++ b/src/data/propers/common/lauds-responsory-proper-to-the-finding-of-the-holy-cross.yml
@@ -0,0 +1,22 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, 2026-05-03 -- own proper responsory. See lauds-capitulum-
+# proper-to-the-finding-of-the-holy-cross.yml's header.
+id: lauds-responsory-proper-to-the-finding-of-the-holy-cross
+text:
+  la: |
+    R.br. Hoc signum Crucis erit in cælo: * Allelúja, allelúja.
+    ℟. Hoc signum Crucis erit in cælo: * Allelúja, allelúja.
+    ℣. Cum Dóminus ad judicándum vénerit.
+    ℟. Allelúja, allelúja.
+    ℣. Glória Patri, et Fílio, * et Spirítui Sancto.
+    ℟. Hoc signum Crucis erit in cælo: * Allelúja, allelúja.
+  en: |
+    R.br. This sign of the Cross shall be in heaven. * Alleluia, alleluia.
+    ℟. This sign of the Cross shall be in heaven. * Alleluia, alleluia.
+    ℣. When the Lord cometh to judgment.
+    ℟. Alleluia, alleluia.
+    ℣. Glory be to the Father, and to the Son, * and to the Holy Ghost.
+    ℟. This sign of the Cross shall be in heaven. * Alleluia, alleluia.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/lauds-versicle-finding-of-the-holy-cross.yml b/src/data/propers/common/lauds-versicle-finding-of-the-holy-cross.yml
new file mode 100644
index 0000000..fe0bd44
--- /dev/null
+++ b/src/data/propers/common/lauds-versicle-finding-of-the-holy-cross.yml
@@ -0,0 +1,16 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, 2026-05-03 -- own proper versicle, cross-referencing
+# Vespers' own responsory text (a real "double responsory" structure
+# for this major feast, not a mistake). See lauds-capitulum-finding-of-
+# the-holy-cross.yml's header.
+id: lauds-versicle-finding-of-the-holy-cross
+text:
+  la: |
+    ℣. Adorámus te, Christe, et benedícimus tibi, allelúja.
+    ℟. Quia per Crucem tuam redemísti mundum, allelúja.
+  en: |
+    ℣. We adore thee, O Christ, and we bless thee. Alleluia.
+    ℟. Because that through thy Cross Thou hast redeemed the world. Alleluia.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/lauds-versicle-proper-to-the-finding-of-the-holy-cross.yml b/src/data/propers/common/lauds-versicle-proper-to-the-finding-of-the-holy-cross.yml
new file mode 100644
index 0000000..5fa1bf5
--- /dev/null
+++ b/src/data/propers/common/lauds-versicle-proper-to-the-finding-of-the-holy-cross.yml
@@ -0,0 +1,16 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, 2026-05-03 -- own proper versicle, cross-referencing
+# Vespers' own responsory text (a real "double responsory" structure
+# for this major feast, not a mistake). See lauds-capitulum-finding-of-
+# the-holy-cross.yml's header.
+id: lauds-versicle-proper-to-the-finding-of-the-holy-cross
+text:
+  la: |
+    ℣. Adorámus te, Christe, et benedícimus tibi, allelúja.
+    ℟. Quia per Crucem tuam redemísti mundum, allelúja.
+  en: |
+    ℣. We adore thee, O Christ, and we bless thee. Alleluia.
+    ℟. Because that through thy Cross Thou hast redeemed the world. Alleluia.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/vespers-hymn-finding-of-the-holy-cross.yml b/src/data/propers/common/vespers-hymn-finding-of-the-holy-cross.yml
new file mode 100644
index 0000000..2fe13af
--- /dev/null
+++ b/src/data/propers/common/vespers-hymn-finding-of-the-holy-cross.yml
@@ -0,0 +1,133 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Vespers
+# live query, 2026-05-03 -- own proper hymn ("Vexílla Regis pródeunt,"
+# one of the most widely known Latin hymns for the Holy Cross). See
+# lauds-capitulum-finding-of-the-holy-cross.yml's header.
+id: vespers-hymn-finding-of-the-holy-cross
+text:
+  la: >-
+    Vexílla Regis pródeunt:
+
+    Fulget Crucis mystérium,
+
+    Quo carne carnis Cónditor
+
+    Suspénsus est patíbulo.
+
+
+    Quo vulnerátus ínsuper
+
+    Mucróne diro lánceæ,
+
+    Ut nos laváret crímine,
+
+    Manávit unda et sánguine.
+
+
+    Impléta sunt quæ cóncinit
+
+    David fidéli cármine,
+
+    Dicens: In natiónibus
+
+    Regnávit a ligno Deus.
+
+
+    Arbor decóra et fúlgida,
+
+    Ornáta Regis púrpura,
+
+    Elécta digno stípite
+
+    Tam sancta membra tángere.
+
+
+    Beáta, cujus bráchiis
+
+    Sæcli pepéndit prétium,
+
+    Statéra facta córporis,
+
+    Prædámque tulit tártari.
+
+
+    O Crux, ave, spes única,
+
+    In hoc Pascháli gáudio
+
+    Auge piis justítiam,
+
+    Reísque dona véniam.
+
+
+    Te summa, Deus, Trínitas,
+
+    Colláudet omnis spíritus:
+
+    Quos per Crucis mystérium
+
+    Salvas, rege per sǽcula. Amen.
+  en: >-
+    Abroad the regal banners fly,
+
+    Now shines the cross's mystery;
+
+    Upon it Life did death endure,
+
+    And yet by death did life procure.
+
+
+    Who, wounded with a direful spear,
+
+    Did, purposely to wash us clear
+
+    From stain of sin, pour out a flood
+
+    Of precious water mixed with blood.
+
+
+    That which the prophet-king of old
+
+    Hath in mysterious verse foretold,
+
+    Is now accomplished, whilst we see
+
+    God ruling nations from a tree.
+
+
+    O lovely and refulgent tree,
+
+    Adorned with purpled majesty;
+
+    Culled from a worthy stock, to bear
+
+    Those limbs which sanctified were.
+
+
+    Blest tree, whose happy branches bore
+
+    The wealth that did the world restore;
+
+    The beam that did that body weigh
+
+    Which raised up hell's expected prey.
+
+
+    O Cross, our one reliance, hail!
+
+    Thou joy of Eastertide, avail
+
+    To give fresh merit to the saint,
+
+    And pardon to the penitent.
+
+
+    Blest Trinity, salvation's spring,
+
+    May every soul thy praises sing;
+
+    To those thou grantest conquest by
+
+    The holy cross, rewards apply. Amen.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/vespers-hymn-proper-to-the-finding-of-the-holy-cross.yml b/src/data/propers/common/vespers-hymn-proper-to-the-finding-of-the-holy-cross.yml
new file mode 100644
index 0000000..c737efb
--- /dev/null
+++ b/src/data/propers/common/vespers-hymn-proper-to-the-finding-of-the-holy-cross.yml
@@ -0,0 +1,133 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Vespers
+# live query, 2026-05-03 -- own proper hymn ("Vexílla Regis pródeunt,"
+# one of the most widely known Latin hymns for the Holy Cross). See
+# lauds-capitulum-proper-to-the-finding-of-the-holy-cross.yml's header.
+id: vespers-hymn-proper-to-the-finding-of-the-holy-cross
+text:
+  la: >-
+    Vexílla Regis pródeunt:
+
+    Fulget Crucis mystérium,
+
+    Quo carne carnis Cónditor
+
+    Suspénsus est patíbulo.
+
+
+    Quo vulnerátus ínsuper
+
+    Mucróne diro lánceæ,
+
+    Ut nos laváret crímine,
+
+    Manávit unda et sánguine.
+
+
+    Impléta sunt quæ cóncinit
+
+    David fidéli cármine,
+
+    Dicens: In natiónibus
+
+    Regnávit a ligno Deus.
+
+
+    Arbor decóra et fúlgida,
+
+    Ornáta Regis púrpura,
+
+    Elécta digno stípite
+
+    Tam sancta membra tángere.
+
+
+    Beáta, cujus bráchiis
+
+    Sæcli pepéndit prétium,
+
+    Statéra facta córporis,
+
+    Prædámque tulit tártari.
+
+
+    O Crux, ave, spes única,
+
+    In hoc Pascháli gáudio
+
+    Auge piis justítiam,
+
+    Reísque dona véniam.
+
+
+    Te summa, Deus, Trínitas,
+
+    Colláudet omnis spíritus:
+
+    Quos per Crucis mystérium
+
+    Salvas, rege per sǽcula. Amen.
+  en: >-
+    Abroad the regal banners fly,
+
+    Now shines the cross's mystery;
+
+    Upon it Life did death endure,
+
+    And yet by death did life procure.
+
+
+    Who, wounded with a direful spear,
+
+    Did, purposely to wash us clear
+
+    From stain of sin, pour out a flood
+
+    Of precious water mixed with blood.
+
+
+    That which the prophet-king of old
+
+    Hath in mysterious verse foretold,
+
+    Is now accomplished, whilst we see
+
+    God ruling nations from a tree.
+
+
+    O lovely and refulgent tree,
+
+    Adorned with purpled majesty;
+
+    Culled from a worthy stock, to bear
+
+    Those limbs which sanctified were.
+
+
+    Blest tree, whose happy branches bore
+
+    The wealth that did the world restore;
+
+    The beam that did that body weigh
+
+    Which raised up hell's expected prey.
+
+
+    O Cross, our one reliance, hail!
+
+    Thou joy of Eastertide, avail
+
+    To give fresh merit to the saint,
+
+    And pardon to the penitent.
+
+
+    Blest Trinity, salvation's spring,
+
+    May every soul thy praises sing;
+
+    To those thou grantest conquest by
+
+    The holy cross, rewards apply. Amen.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/vespers-responsory-finding-of-the-holy-cross.yml b/src/data/propers/common/vespers-responsory-finding-of-the-holy-cross.yml
new file mode 100644
index 0000000..7e5b0da
--- /dev/null
+++ b/src/data/propers/common/vespers-responsory-finding-of-the-holy-cross.yml
@@ -0,0 +1,22 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Vespers
+# live query, 2026-05-03 -- own proper responsory. See lauds-capitulum-
+# finding-of-the-holy-cross.yml's header.
+id: vespers-responsory-finding-of-the-holy-cross
+text:
+  la: |
+    R.br. Adorámus te, Christe, et benedícimus tibi: * Allelúja, allelúja.
+    ℟. Adorámus te, Christe, et benedícimus tibi: * Allelúja, allelúja.
+    ℣. Quia per Crucem tuam redemísti mundum.
+    ℟. Allelúja, allelúja.
+    ℣. Glória Patri, et Fílio, * et Spirítui Sancto.
+    ℟. Adorámus te, Christe, et benedícimus tibi: * Allelúja, allelúja.
+  en: |
+    R.br. We adore thee, O Christ, and we bless thee. * Alleluia, alleluia.
+    ℟. We adore thee, O Christ, and we bless thee. * Alleluia, alleluia.
+    ℣. Because that through thy cross thou hast redeemed the world.
+    ℟. Alleluia, alleluia.
+    ℣. Glory be to the Father, and to the Son, * and to the Holy Ghost.
+    ℟. We adore thee, O Christ, and we bless thee. * Alleluia, alleluia.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/vespers-responsory-proper-to-the-finding-of-the-holy-cross.yml b/src/data/propers/common/vespers-responsory-proper-to-the-finding-of-the-holy-cross.yml
new file mode 100644
index 0000000..43f0a96
--- /dev/null
+++ b/src/data/propers/common/vespers-responsory-proper-to-the-finding-of-the-holy-cross.yml
@@ -0,0 +1,22 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Vespers
+# live query, 2026-05-03 -- own proper responsory. See lauds-capitulum-
+# proper-to-the-finding-of-the-holy-cross.yml's header.
+id: vespers-responsory-proper-to-the-finding-of-the-holy-cross
+text:
+  la: |
+    R.br. Adorámus te, Christe, et benedícimus tibi: * Allelúja, allelúja.
+    ℟. Adorámus te, Christe, et benedícimus tibi: * Allelúja, allelúja.
+    ℣. Quia per Crucem tuam redemísti mundum.
+    ℟. Allelúja, allelúja.
+    ℣. Glória Patri, et Fílio, * et Spirítui Sancto.
+    ℟. Adorámus te, Christe, et benedícimus tibi: * Allelúja, allelúja.
+  en: |
+    R.br. We adore thee, O Christ, and we bless thee. * Alleluia, alleluia.
+    ℟. We adore thee, O Christ, and we bless thee. * Alleluia, alleluia.
+    ℣. Because that through thy cross thou hast redeemed the world.
+    ℟. Alleluia, alleluia.
+    ℣. Glory be to the Father, and to the Son, * and to the Holy Ghost.
+    ℟. We adore thee, O Christ, and we bless thee. * Alleluia, alleluia.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/vespers-versicle-finding-of-the-holy-cross.yml b/src/data/propers/common/vespers-versicle-finding-of-the-holy-cross.yml
new file mode 100644
index 0000000..3c39112
--- /dev/null
+++ b/src/data/propers/common/vespers-versicle-finding-of-the-holy-cross.yml
@@ -0,0 +1,16 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Vespers
+# live query, 2026-05-03 -- own proper versicle, cross-referencing
+# Lauds' own responsory text (a real "double responsory" structure for
+# this major feast). See lauds-capitulum-finding-of-the-holy-cross.yml's
+# header.
+id: vespers-versicle-finding-of-the-holy-cross
+text:
+  la: |
+    ℣. Hoc signum Crucis erit in cælo. Allelúja.
+    ℟. Cum Dóminus ad judicándum vénerit. Allelúja.
+  en: |
+    ℣. This sign of the Cross shall be in heaven. Alleluia.
+    ℟. When the Lord cometh to judgment. Alleluia.
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/vespers-versicle-proper-to-the-finding-of-the-holy-cross.yml b/src/data/propers/common/vespers-versicle-proper-to-the-finding-of-the-holy-cross.yml
new file mode 100644
index 0000000..4baa587
--- /dev/null
+++ b/src/data/propers/common/vespers-versicle-proper-to-the-finding-of-the-holy-cross.yml
@@ -0,0 +1,16 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Vespers
+# live query, 2026-05-03 -- own proper versicle, cross-referencing
+# Lauds' own responsory text (a real "double responsory" structure for
+# this major feast). See lauds-capitulum-proper-to-the-finding-of-the-holy-cross.yml's
+# header.
+id: vespers-versicle-proper-to-the-finding-of-the-holy-cross
+text:
+  la: |
+    ℣. Hoc signum Crucis erit in cælo. Allelúja.
+    ℟. Cum Dóminus ad judicándum vénerit. Allelúja.
+  en: |
+    ℣. This sign of the Cross shall be in heaven. Alleluia.
+    ℟. When the Lord cometh to judgment. Alleluia.
+status:
+  la: verified
+  en: verified
diff --git a/tests/hours/lauds.test.ts b/tests/hours/lauds.test.ts
index 2f29f4c..cbe8fcf 100644
--- a/tests/hours/lauds.test.ts
+++ b/tests/hours/lauds.test.ts
@@ -362,6 +362,23 @@ describe('resolveOrdo("lauds", ...)', () => {
     expect(hymn?.kind === 'hymn' ? hymn.text.text.la : undefined).toContain('O gloriósa Dómina');
   });
 
+  it("resolves the Finding and Exaltation of the Holy Cross's own proper chapter/hymn (shared content, two ids)", () => {
+    // Live-verified against Divinum Officium (Monastic Tridentinum
+    // 1617): Finding, 2027-05-03 (2026 collides with a privileged
+    // Sunday); Exaltation, 2026-09-14 (its own real day). See lauds-
+    // capitulum-finding-of-the-holy-cross.yml's and -proper-to-the-
+    // finding-of-the-holy-cross.yml's headers.
+    const finding = resolveOrdo('lauds', '2027-05-03');
+    const findingChapter = finding.parts.find((p) => p.kind === 'chapter');
+    expect(findingChapter?.kind === 'chapter' ? findingChapter.text.citation?.en : undefined).toBe('Phil 2:5-7');
+    const findingHymn = finding.parts.find((p) => p.kind === 'hymn');
+    expect(findingHymn?.kind === 'hymn' ? findingHymn.text.text.la : undefined).toContain('Lustris sex qui jam peráctis');
+
+    const exaltation = resolveOrdo('lauds', '2026-09-14');
+    const exaltationHymn = exaltation.parts.find((p) => p.kind === 'hymn');
+    expect(exaltationHymn?.kind === 'hymn' ? exaltationHymn.text.text.la : undefined).toContain('Lustris sex qui jam peráctis');
+  });
+
   it('includes the Kyrie + Our Father lead-in right after the Benedictus, before the day collect (either form)', () => {
     const ordo = resolveOrdo('lauds', FERIAL_TUESDAY);
     const litanyIndex = ordo.parts.findIndex((p) => p.kind === 'preces' && p.text.text.la?.includes('Kýrie, eléison'));
diff --git a/tests/hours/vespers.test.ts b/tests/hours/vespers.test.ts
index 593c4d0..b35fe95 100644
--- a/tests/hours/vespers.test.ts
+++ b/tests/hours/vespers.test.ts
@@ -374,6 +374,15 @@ describe('resolveOrdo("vespers", ...)', () => {
     expect(hymn?.kind === 'hymn' ? hymn.text.text.la : undefined).toContain('Ave maris stella');
   });
 
+  it("resolves the Finding of the Holy Cross's own proper Vespers hymn ('Vexilla Regis')", () => {
+    // Live-verified against Divinum Officium (Monastic Tridentinum
+    // 1617), 2027-05-03 (Duplex II. classis, keeps own Second Vespers).
+    // See lauds-capitulum-finding-of-the-holy-cross.yml's header.
+    const ordo = resolveOrdo('vespers', '2027-05-03');
+    const hymn = ordo.parts.find((p) => p.kind === 'hymn');
+    expect(hymn?.kind === 'hymn' ? hymn.text.text.la : undefined).toContain('Vexílla Regis pródeunt');
+  });
+
   it("renders Passiontide's seasonal office, with the Gloria Patri omitted from the responsory", () => {
     // 2026-03-30 is Holy Monday (Passion Sunday 2026-03-22 through Holy
     // Saturday 2026-04-04) -- deliberately not 03-25, the Annunciation's