diff --git a/TODO.md b/TODO.md
index 36c170a..62e5a95 100644
--- a/TODO.md
+++ b/TODO.md
@@ -123,7 +123,10 @@ saint has the same kind of mismatch.
   and March 9 always falls within Lent every tested year (2026-2035) — she
   structurally can never win her own day outright under this app's own
   calendar rules, so there's no live-rendered antiphon to source at all.
-- **April-December (87 saints): not started.**
+- **April (8 total): done, all 8.** St. Francis of Paola, St. Leo I,
+  Ss. Tiburtius/Valerian/Maximus, St. George, St. Mark, St. Vitalis,
+  St. Robert, St. Peter Martyr.
+- **May-December (79 saints): not started.**
 - **~52 temporal entries: not started.**
 - **94 `propers: null` saints: not started** — need a collect authored (a
   bigger, separate task) before an antiphon id even has anywhere to attach.
diff --git a/src/data/propers/common/ss-tiburtius-valerian-and-maximus-antiphon.yml b/src/data/propers/common/ss-tiburtius-valerian-and-maximus-antiphon.yml
new file mode 100644
index 0000000..4399f1c
--- /dev/null
+++ b/src/data/propers/common/ss-tiburtius-valerian-and-maximus-antiphon.yml
@@ -0,0 +1,13 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, Ss. Tiburtius, Valerian, and Maximus's own day (2027-04-14).
+# The Benedictus antiphon -- shared word-for-word with St. George's,
+# St. Vitalis's, and St. Peter Martyr's own (all draw on the same
+# Eastertide Common of Several Martyrs text, confirmed independently for
+# each rather than assumed).
+id: ss-tiburtius-valerian-and-maximus-antiphon
+text:
+  la: "Fíliæ Jerúsalem, * veníte et vidéte Mártyres cum corónis, quibus coronávit eos Dóminus in die solemnitátis et lætítiæ, allelúja, allelúja."
+  en: "Daughters of Jerusalem, * come and see the crowned martyrs, the Lord crowned them in his solemnity and delight, alleluia, alleluia."
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/st-francis-of-paola-antiphon.yml b/src/data/propers/common/st-francis-of-paola-antiphon.yml
new file mode 100644
index 0000000..711f0b6
--- /dev/null
+++ b/src/data/propers/common/st-francis-of-paola-antiphon.yml
@@ -0,0 +1,10 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, St. Francis of Paola's own day (2030-04-02 -- Holy Week/
+# Eastertide govern 2026-2029). The Benedictus antiphon.
+id: st-francis-of-paola-antiphon
+text:
+  la: "Euge, serve bone et fidélis, quia in pauca fuísti fidélis, supra multa te constítuam, intra in gáudium Dómini tui."
+  en: "Well done, thou good and faithful servant; thou hast been faithful over a few things, I will make thee ruler over many things; enter thou into the joy of thy Lord."
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/st-george-antiphon.yml b/src/data/propers/common/st-george-antiphon.yml
new file mode 100644
index 0000000..5fe7b7a
--- /dev/null
+++ b/src/data/propers/common/st-george-antiphon.yml
@@ -0,0 +1,11 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, St. George's own day (2026-04-23). The Benedictus antiphon
+# -- see ss-tiburtius-valerian-and-maximus-antiphon.yml's note on the
+# shared Eastertide Common-of-Several-Martyrs text.
+id: st-george-antiphon
+text:
+  la: "Fíliæ Jerúsalem, * veníte et vidéte Mártyres cum corónis, quibus coronávit eos Dóminus in die solemnitátis et lætítiæ, allelúja, allelúja."
+  en: "Daughters of Jerusalem, * come and see the crowned martyrs, the Lord crowned them in his solemnity and delight, alleluia, alleluia."
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/st-leo-i-antiphon.yml b/src/data/propers/common/st-leo-i-antiphon.yml
new file mode 100644
index 0000000..5381c66
--- /dev/null
+++ b/src/data/propers/common/st-leo-i-antiphon.yml
@@ -0,0 +1,11 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, St. Leo I's own day (2029-04-11 -- Holy Week/Eastertide
+# govern 2026-2028; Easter dates in general leave few clean years for
+# this one). The Benedictus antiphon.
+id: st-leo-i-antiphon
+text:
+  la: "Euge, serve bone et fidélis, quia in pauca fuísti fidélis, supra multa te constítuam, dicit Dóminus, allelúja."
+  en: "Well done, thou good and faithful servant thou hast been faithful over a few things, I will make thee ruler over many things, saith the Lord, alleluia."
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/st-mark-antiphon.yml b/src/data/propers/common/st-mark-antiphon.yml
new file mode 100644
index 0000000..c5226c7
--- /dev/null
+++ b/src/data/propers/common/st-mark-antiphon.yml
@@ -0,0 +1,12 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, St. Mark's own day (2026-04-25). The Benedictus antiphon --
+# see ss-tiburtius-valerian-and-maximus-antiphon.yml's note on the shared
+# Eastertide Common text (his own rendering happened to only show the
+# full form, not a separate incipit, so no '*' is inserted here).
+id: st-mark-antiphon
+text:
+  la: "Fíliæ Jerúsalem, veníte et vidéte Mártyres cum corónis, quibus coronávit eos Dóminus in die solemnitátis et lætítiæ, allelúja, allelúja."
+  en: "Daughters of Jerusalem, come and see the crowned martyrs, the Lord crowned them in his solemnity and delight, alleluia, alleluia."
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/st-peter-martyr-antiphon.yml b/src/data/propers/common/st-peter-martyr-antiphon.yml
new file mode 100644
index 0000000..457af0e
--- /dev/null
+++ b/src/data/propers/common/st-peter-martyr-antiphon.yml
@@ -0,0 +1,11 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, St. Peter Martyr's own day (2026-04-30). The Benedictus
+# antiphon -- see ss-tiburtius-valerian-and-maximus-antiphon.yml's note
+# on the shared Eastertide Common text.
+id: st-peter-martyr-antiphon
+text:
+  la: "Fíliæ Jerúsalem, * veníte et vidéte Mártyres cum corónis, quibus coronávit eos Dóminus in die solemnitátis et lætítiæ, allelúja, allelúja."
+  en: "Daughters of Jerusalem, * come and see the crowned martyrs, the Lord crowned them in his solemnity and delight, alleluia, alleluia."
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/st-robert-antiphon.yml b/src/data/propers/common/st-robert-antiphon.yml
new file mode 100644
index 0000000..7e9866f
--- /dev/null
+++ b/src/data/propers/common/st-robert-antiphon.yml
@@ -0,0 +1,9 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, St. Robert's own day (2026-04-29). The Benedictus antiphon.
+id: st-robert-antiphon
+text:
+  la: "Euge, serve bone et fidélis, quia in pauca fuísti fidélis, supra multa te constítuam, intra in gáudium Dómini tui, allelúja."
+  en: "Well done, thou good and faithful servant; thou hast been faithful over a few things, I will make thee ruler over many things; enter thou into the joy of thy Lord, alleluia."
+status:
+  la: verified
+  en: verified
diff --git a/src/data/propers/common/st-vitalis-antiphon.yml b/src/data/propers/common/st-vitalis-antiphon.yml
new file mode 100644
index 0000000..628d5df
--- /dev/null
+++ b/src/data/propers/common/st-vitalis-antiphon.yml
@@ -0,0 +1,11 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617), Lauds
+# live query, St. Vitalis's own day (2026-04-28). The Benedictus antiphon
+# -- see ss-tiburtius-valerian-and-maximus-antiphon.yml's note on the
+# shared Eastertide Common text.
+id: st-vitalis-antiphon
+text:
+  la: "Fíliæ Jerúsalem, * veníte et vidéte Mártyres cum corónis, quibus coronávit eos Dóminus in die solemnitátis et lætítiæ, allelúja, allelúja."
+  en: "Daughters of Jerusalem, * come and see the crowned martyrs, the Lord crowned them in his solemnity and delight, alleluia, alleluia."
+status:
+  la: verified
+  en: verified