The Tridentine Calendar is the calendar of saints to be honoured in the official liturgy of the Roman Rite as established by Pope Pius V, when, in 1570, he implemented a decision of the Council of Trent by promulgating his Roman Missal.
The Tridentine Calendar is the calendar of saints to be honoured in the official liturgy of the Roman Rite as established by Pope Pius V. He implemented a decision of the Council of Trent by. This was in 1570. He was promulgating his Roman Missal. This was in 1570.