Which church in Rome is reputed to house the remains of Saint Valentine?

Santa Maria in Cosmedin is the church in Rome reputed to house the remains of Saint Valentine.

The basilica contains a flower-crowned skull traditionally identified as Saint Valentine. It is displayed among the church’s relics, although the identification is an attribution rather than a certainty. Santa Maria in Cosmedin stands near the ancient Forum Boarium and is also famous for the Bocca della Verità, or Mouth of Truth.

Saint Valentine’s identity is complicated because several early Christian martyrs named Valentine are associated with February 14. Relics attributed to him are also claimed by churches in places including Terni, Madrid, Dublin and Prague. That is why careful descriptions usually say the skull is alleged or reputed to be Valentine’s, rather than treating the identification as historically proven.

The church itself began as a sixth-century Christian building serving Rome’s Greek-speaking community and was substantially developed during the medieval period. Its Valentine relic makes it a notable stop for visitors exploring the saint’s legends, but it should not be confused with St. Peter’s Basilica or Santa Maria Maggiore.