A layman martyred at Sirmium in the fourth century, remembered through the ancient tradition of that Roman city.

Saint Sinerot was a layman martyred at Sirmium, an important Roman city in present-day Serbia, with his death traditionally placed in the fourth century. Sirmium, a center of persecution and martyrdom in the late Roman period, is associated with numerous early Christian witnesses, of whom Sinerot’s name is one preserved in the local martyrological tradition.

Quick Facts

• Died: IV century (traditional), at Sirmium, Serbia
• Venerated as: Layman and martyr

Who Was Saint Sinerot?

Sinerot was a layman put to death at Sirmium, a major Roman provincial capital in the region of present-day Serbia. His martyrdom is dated only generally to the fourth century, and no detailed account of his life or the circumstances of his death has survived.

Historical Setting

Sirmium was one of the most important cities of the late Roman Empire and, at times, an imperial residence, but it was also a site of significant persecution against Christians, particularly under Diocletian and Galerius, producing a substantial local community of venerated martyrs.

Why the Church Remembers Saint Sinerot

Sinerot is remembered as one of the many martyrs associated with Sirmium, a city whose Christian community suffered heavily during the empire’s persecutions and whose martyrs became a significant part of the local church’s identity and devotion.

Canonization and Feast Day

No formal canonization process is recorded for Sinerot. His veneration rests on the ancient and immemorial cult of Sirmium, honored through the Church’s liturgical memory long before formal canonization procedures existed.

What Catholics Can Learn Today

Sinerot’s place among the many martyrs of Sirmium reflects how a single city’s suffering for the faith could produce an entire community of venerated witnesses, each contributing to a larger, shared testimony of Christian courage.

A Prayer to Saint Sinerot

Saint Sinerot, martyr of Sirmium, you gave your life among many faithful witnesses of your city. Unite our own faith with the courage of all who suffered for Christ before us. Amen.

Sources

• Roman Martyrology