Page "Pope Lucius I" Paragraph 4

His feast did not appear in the Tridentine Calendar of Pope Saint Pius V. In 1602 it was inserted, under the date of 4 March into the calendar of saints for use wherever the Roman Rite is celebrated.

With the insertion in 1621 on the same date of the feast of Saint Casimir, the celebration of Pope Lucius was reduced to a commemoration with Saint Casimir's Mass.

It remained so until 1969, when Pope Lucius's feast was moved in the Roman Martyrology to the day of his death and omitted from the General Calendar, partly because of the baselessness of the title of " martyr " with which he had previously been honoured.