Pope Gregory XIII

The Roman Martyrology

The Roman Martyrology is a Catholic Church-approved calendar of saints and martyrs. It is a liturgical text containing a listing of saints and martyrs. The Roman Martyrology has a long history, with the first edition published in 1584 by Pope Gregory XIII. It is based on The Martyrology of Usuard, a mediaeval martyrology compiled by a monk named Usuard in the 9th century, which was in turn based on the history and writings of the early Church Fathers.It is arranged according to the calendar, with entries for each day of the year, and provides information about the feasts and memorials of the saints as well as the lives and deaths of saints and martyrs.