Martyrologium Hieronymianum

The Martyrologium Hieronymianum (meaning "martyrology of Jerome") is list of Christian martyrs, one of the most used and influential of the Middle Ages It is the oldest surviving general or "universal" martyrology, and the ultimate source of all later Western martyrologies. It was probably compiled in the late 6th century by monks in Gaul from calendars or martyrologies originating in Rome, Africa, the Christian east and locally.