The Roman Missal: Proper of Saints, March and April (English) 31

1[April 29. St Peter, Martyr.—Double.]
2[Mass.—Protexisti for a Martyr in Paschal time, page xii, except what follows:]
3Prayer. Præsta quæsumus. Grant, we beseech thee, Almighty God, that we may follow with due devotion the faith of blessed Peter, thy martyr; who, for propagating the same faith, deserved to obtain the palm of martyrdom. Through our Lord, &c.
4[Epistle, as on the Feasts of St George, page 566. Credo.]
5Secret. Mercifully regard the prayers which we offer thee, O Lord, by the intercession of blessed Peter, thy martyr; and preserve the defenders of the faith under thy protection. Through our Lord, &c.
6Postcom. Fideles tuos. May the sacrament we have received preserve thy faithful, O Lord, and by the intercession of blessed Peter, thy martyr, defend them from all assaults of their enemies. Through our Lord, &c.