calendar: pull May's sanctoral calendar (pre-1955 pull, 5/12)

18 saints for May (16 real + 2 stubs). Both stubs this month are
genuinely unwinnable in the real historical calendar in any year (their
competing observances are fixed-date, not movable) — flagged explicitly
in their own files as distinct from the usual "just an artifact of the
year checked" caveat.

A second, distinct feast of St. Michael (his Apparition, May 8) is kept
as its own record separate from st-michael.yml's Sept 29 dedication
feast, same precedent as the two Chair-of-Peter feasts.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/data/calendar/saints/apparition-of-st-michael.yml

@@ -0,0 +1,11 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), live kalendar
+# check (2029-05-08, no Sunday collision) -- winner outright, Duplex majus.
+# A second, distinct feast of St. Michael (his apparition at Monte Gargano)
+# from st-michael.yml's Sept 29 dedication feast -- kept as a separate
+# record, same precedent as the two Chair-of-Peter feasts. Own proper
+# collect and antiphon.
+id: apparition-of-st-michael
+name: "The Apparition of St. Michael the Archangel"
+rank: duplex-majus
+common: common-of-an-angel
+propers: "apparition-of-st-michael"

src/data/calendar/saints/ss-alexander-eventius-theodulus-and-juvenal.yml

@@ -0,0 +1,14 @@
+# Secondary commemoration on 05-03, pulled from Divinum Officium's kalendar
+# headline (Monastic Tridentinum 1617) -- loses the day to the Finding of
+# the Holy Cross (a fixed-date feast of the Lord, out of scope, see
+# sanctoral-calendar.yml), so unlike most other stubs in this set, this
+# isn't just an artifact of the specific year checked: their competing
+# observance is likewise fixed-date, meaning no year exists where they'd
+# win independently. That query doesn't expose a secondary entry's own
+# rank, only its name -- simplex here is an unverified placeholder, same
+# caveat as every other stub. No text pulled at all yet.
+id: ss-alexander-eventius-theodulus-and-juvenal
+name: "Ss. Alexander I, Eventius, and Theodulus, Martyrs, and Juvenal, Bishop and Confessor"
+rank: simplex
+common: common-of-several-martyrs
+propers: null

src/data/calendar/saints/ss-nereus-achilleus-domitilla-and-pancras.yml

@@ -0,0 +1,8 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), live kalendar
+# check (2029-05-12, no Sunday collision) -- winner outright, Semiduplex.
+# Own proper collect, no unique antiphon of their own.
+id: ss-nereus-achilleus-domitilla-and-pancras
+name: "Ss. Nereus, Achilleus, Domitilla, and Pancras, Martyrs"
+rank: semiduplex
+common: common-of-several-martyrs
+propers: "ss-nereus-achilleus-domitilla-and-pancras"

src/data/calendar/saints/ss-philip-and-james.yml

@@ -0,0 +1,8 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), live kalendar
+# check (2029-05-01, no Sunday collision) -- winner outright, Duplex II.
+# classis. Own proper collect and antiphon.
+id: ss-philip-and-james
+name: "Ss. Philip and James, Apostles"
+rank: duplex-2-classis
+common: common-of-an-apostle
+propers: "ss-philip-and-james"

src/data/calendar/saints/st-athanasius.yml

@@ -0,0 +1,8 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), live kalendar
+# check (2029-05-02, no Sunday collision) -- winner outright, Duplex. Own
+# proper collect, no unique antiphon of his own.
+id: st-athanasius
+name: "St. Athanasius, Bishop, Confessor and Doctor of the Church"
+rank: duplex
+common: common-of-a-confessor-bishop
+propers: "st-athanasius"

src/data/calendar/saints/st-boniface.yml

@@ -0,0 +1,12 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), live kalendar
+# check (2031-05-14 -- his usual date is repeatedly overshadowed by the
+# movable Ascension octave, or by St. George transferring in from a
+# collision elsewhere; 2031 is clear of both, and not a Sunday) -- winner
+# outright, Simplex. Own proper collect, no unique antiphon of his own.
+# (Not the 8th-century missionary St. Boniface of Mainz -- an earlier,
+# less well known martyr of the same name.)
+id: st-boniface
+name: "St. Boniface, Martyr"
+rank: simplex
+common: common-of-a-martyr
+propers: "st-boniface"

src/data/calendar/saints/st-eleutherius.yml

@@ -0,0 +1,9 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), live kalendar
+# check (2038-05-26, clear of the movable Pentecost Ember Saturday that
+# usually overshadows this date) -- winner outright, Simplex. Own proper
+# collect, no unique antiphon of his own.
+id: st-eleutherius
+name: "St. Eleutherius, Pope and Martyr"
+rank: simplex
+common: common-of-a-martyr-bishop
+propers: "st-eleutherius"

src/data/calendar/saints/st-felix-i.yml

@@ -0,0 +1,8 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), live kalendar
+# check (2029-05-30, no Sunday collision) -- winner outright, Simplex. No
+# unique Oratio/Antiphon in the source -- Common of a Martyr Bishop only.
+id: st-felix-i
+name: "St. Felix I, Pope and Martyr"
+rank: simplex
+common: common-of-a-martyr-bishop
+propers: null

src/data/calendar/saints/st-gregory-nazianzen.yml

@@ -0,0 +1,9 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), live kalendar
+# check (2029-05-09, no Sunday collision) -- winner outright, Duplex. No
+# unique Oratio/Antiphon in the source -- Common of a Confessor Bishop
+# only.
+id: st-gregory-nazianzen
+name: "St. Gregory Nazianzen, Bishop, Confessor and Doctor of the Church"
+rank: duplex
+common: common-of-a-confessor-bishop
+propers: null

src/data/calendar/saints/st-john-before-the-latin-gate.yml

@@ -0,0 +1,11 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), live kalendar
+# check (2029-05-06, a Sunday that year, but Duplex majus wins outright
+# regardless per the ordinary-Sunday rule). About St. John the Apostle's
+# own specific commemoration (his legendary trial by boiling oil), kept in
+# the sanctoral store like the Chair-of-Peter feasts rather than treated as
+# a feast of the Lord. Own proper collect and antiphon.
+id: st-john-before-the-latin-gate
+name: "St. John Before the Latin Gate"
+rank: duplex-majus
+common: common-of-an-apostle
+propers: "st-john-before-the-latin-gate"

src/data/calendar/saints/st-john-i.yml

@@ -0,0 +1,9 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), live kalendar
+# check (2038-05-27, clear of the movable Trinity Sunday that usually
+# overshadows this date) -- winner outright, Simplex. Own proper collect,
+# no unique antiphon of his own.
+id: st-john-i
+name: "St. John I, Pope and Martyr"
+rank: simplex
+common: common-of-a-martyr-bishop
+propers: "st-john-i"

src/data/calendar/saints/st-monica.yml

@@ -0,0 +1,8 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), live kalendar
+# check (2029-05-04, no Sunday collision) -- winner outright, Duplex. St.
+# Augustine's mother. Own proper collect, no unique antiphon of her own.
+id: st-monica
+name: "St. Monica, Widow"
+rank: duplex
+common: common-of-a-widow
+propers: "st-monica"

src/data/calendar/saints/st-peter-celestine.yml

@@ -0,0 +1,15 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), live kalendar
+# check (2038-05-19, clear of the movable Vigil of Pentecost that usually
+# overshadows this date) -- winner outright, Duplex. Marked "O. N."
+# (Ordinis Nostri) in the source, like several other saints in this set --
+# a Benedictine-affiliated pope. Own proper collect; his own [Ant 1] is
+# just a cross-reference to the generic Common of Confessors template, so
+# no unique antiphon is recorded (unlike Ss. Philip and James/St. John
+# Before the Latin Gate/the Apparition of St. Michael this same month,
+# whose [Ant 1] really is unique text). Always beats St. Pudentiana on
+# this shared date -- see st-pudentiana.yml.
+id: st-peter-celestine
+name: "St. Peter Celestine, Pope and Confessor"
+rank: duplex
+common: common-of-a-confessor-bishop
+propers: "st-peter-celestine"

src/data/calendar/saints/st-pudentiana.yml

@@ -0,0 +1,14 @@
+# Secondary commemoration on 05-19, pulled from Divinum Officium's kalendar
+# headline (Monastic Tridentinum 1617) -- loses the day to St. Peter
+# Celestine (also a fixed May 19 saint, not movable, see
+# st-peter-celestine.yml), so unlike most other stubs in this set, this
+# isn't just an artifact of the specific year checked: her competing
+# observance is likewise fixed-date, meaning no year exists where she'd
+# win independently. That query doesn't expose a secondary entry's own
+# rank, only its name -- simplex here is an unverified placeholder, same
+# caveat as every other stub. No text pulled at all yet.
+id: st-pudentiana
+name: "St. Pudentiana, Virgin"
+rank: simplex
+common: common-of-a-virgin
+propers: null

src/data/calendar/saints/st-romanus-abbot.yml

@@ -0,0 +1,10 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), live kalendar
+# check (2038-05-22, clear of the movable Pentecost Octave that usually
+# overshadows this date) -- winner outright, Duplex. No unique
+# Oratio/Antiphon in the source (no dedicated Sancti file at all for this
+# date, unlike most other saints in this set) -- Common of an Abbot only.
+id: st-romanus-abbot
+name: "St. Romanus, Abbot"
+rank: duplex
+common: common-of-an-abbot
+propers: null

src/data/calendar/saints/st-stanislaus.yml

@@ -0,0 +1,8 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), live kalendar
+# check (2029-05-07, no Sunday collision) -- winner outright, Semiduplex.
+# Own proper collect, no unique antiphon of his own.
+id: st-stanislaus
+name: "St. Stanislaus, Bishop and Martyr"
+rank: semiduplex
+common: common-of-a-martyr-bishop
+propers: "st-stanislaus"

src/data/calendar/saints/st-ubald.yml

@@ -0,0 +1,8 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), live kalendar
+# check (2029-05-16, no Sunday collision) -- winner outright, Semiduplex.
+# Own proper collect, no unique antiphon of his own.
+id: st-ubald
+name: "St. Ubald, Bishop and Confessor"
+rank: semiduplex
+common: common-of-a-confessor-bishop
+propers: "st-ubald"

src/data/calendar/saints/st-urban-i.yml

@@ -0,0 +1,14 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), live kalendar
+# check (2038-05-25, clear of the movable Pentecost Ember Friday that
+# usually overshadows this date) -- winner outright, Simplex. Own proper
+# collect; his own [Ant 1] is just a cross-reference to the generic Common
+# template, so no unique antiphon is recorded. Being Simplex, this date
+# doesn't help settle whether Pentecost's own Ember days share Lent's
+# lesser privileged-feria tier or the stricter major one (see
+# temporal-categories.yml's open caveat) -- a higher-ranked saint would be
+# needed to test that, and none turned up this month.
+id: st-urban-i
+name: "St. Urban I, Pope and Martyr"
+rank: simplex
+common: common-of-a-martyr-bishop
+propers: "st-urban-i"

src/data/calendar/sanctoral-calendar.yml

@@ -83,6 +83,30 @@ days:
   "04-28": [st-vitalis]
   "04-29": [st-robert, st-catherine-of-siena]
   "04-30": [st-peter-martyr]
+  # May — 5/12 of the pre-1955 pull. Same exclusions as before: fixed
+  # feasts of the Lord (Finding of the Holy Cross May 3), and movable
+  # ones (Ascension, Trinity Sunday, Corpus Christi — all skipped as
+  # primary, since they're temporal, not sanctoral). Two stubs this month
+  # (Ss. Alexander/Eventius/Theodulus/Juvenal, St. Pudentiana) are
+  # genuinely un-winnable in any year, not just an artifact of which year
+  # was checked — see their own files.
+  "05-01": [ss-philip-and-james]
+  "05-02": [st-athanasius]
+  "05-03": [ss-alexander-eventius-theodulus-and-juvenal]
+  "05-04": [st-monica]
+  "05-06": [st-john-before-the-latin-gate]
+  "05-07": [st-stanislaus]
+  "05-08": [apparition-of-st-michael]
+  "05-09": [st-gregory-nazianzen]
+  "05-12": [ss-nereus-achilleus-domitilla-and-pancras]
+  "05-14": [st-boniface]
+  "05-16": [st-ubald]
+  "05-19": [st-peter-celestine, st-pudentiana]
+  "05-22": [st-romanus-abbot]
+  "05-25": [st-urban-i]
+  "05-26": [st-eleutherius]
+  "05-27": [st-john-i]
+  "05-30": [st-felix-i]
   "08-09": [vigil-of-st-lawrence]
   "08-10": [st-lawrence]
   "08-15": [assumption]