The Martyrologium Hieronymianum (meaning "martyrology of Jerome") or Martyrologium sancti Hieronymi (meaning "martyrology of Saint Jerome") is an ancient martyrology or list of Christian martyrs in calendar order, one of the most used and influential of the Middle Ages. It is the oldest surviving general or "universal" martyrology, and the precursor of all later Western martyrologies.
Pseudepigraphically attributed to Saint Jerome, the Martyrologium Hieronymianum contains a reference to him derived from the opening chapter of his Life of Malchus (392 AD) where Jerome states his intention to write a history of the saints and martyrs from the apostolic times: "I decided to write [a history, mentioned earlier] from the coming of the saviour up to our age, that is, from the apostles, up to the dregs of our time".[1]