Pope Saint Siricius was born with the given name of Siricius in the year A.D., and died in 399 A.D. He began his reign as Pope in the year 384 A.D. and ended his reign in the year 399 A.D., during the Late Antiquity. Saint Siricius was from Rome, and his papal number is: 38 out of 267 officially recognized Roman Catholic Popes.

Summary: Pope known for early decretal letters and clerical discipline.

Saint Siricius is especially important in the development of papal governance because his surviving decretal letters reveal the Roman bishop acting with growing juridical clarity. These letters addressed matters of clerical conduct, sacramental discipline, and ecclesiastical order, showing how papal responses were increasingly treated as authoritative for churches beyond Rome.

His pontificate reflects a stage in which the papacy was becoming not only a doctrinal witness but also a source of practical canonical guidance. Siricius was particularly concerned with clerical continence, discipline, and the moral integrity of Church leadership.

He stands as an early architect of papal administration, helping shape the legal and pastoral forms through which Roman authority would be exercised in later centuries.