Page "Tridentine Mass" Paragraph 116

* Pope Leo XIII prescribed that three Ave Marias, a Salve Regina followed by a versicle and response, and a prayer for the conversion of sinners and the freedom and exaltation of Holy Mother the Church, and a prayer to Saint Michael the Archangel be recited following a Low Mass celebrated with the people.

Pope Pius X added a thrice-repeated " Most Sacred Heart of Jesus, have mercy on us.

" Pope Pius XI ordered that these Leonine Prayers, originally said for the solution of the Roman Question, be offered " to permit tranquillity and freedom to profess the faith to be restored to the afflicted people of Russia ".

In English-speaking countries they were recited in the vernacular ; but in countries such as Italy Latin was the language used.

They were suppressed with effect from 7 March 1965.

Since they were never part of the Mass itself and were never included even in an appendix of the Roman Missal, specifically the 1962 typical edition, it is unclear whether they are to be considered obligatory in present-day public celebrations of the Tridentine Mass in accordance with the motu proprio Summorum Pontificum.