Quartus and Quintus

Quartus and Quintus were two Christians martyred at Rome; they are honoured as saints by the Catholic Church, which commemorates them on 10 May. The veneration of these two Roman saints is very ancient, and their commemoration is in the Hieronymian martyrology of the start of the fifth century. They suffered martyrdom on the Via Latina, and their tomb lay near the basilica of Saints Gordian and Epimachus.

Cesare Baronio, in the sixteenth century, entered the commemoration of Quartus and Quintus in the Roman Martyrology, adding that their relics had been moved to Capua. Baronio took these two martyrs to be those represented in the apse mosaic of the basilica of San Prisco at Capua. In the local tradition, Quartus and Quintus were regarded as bishops and were included in the list of the bishops of Capua. In the revision of the Roman Martyrology after the Second Vatican Council, the reference to Capua was omitted. They are honoured as saints of the undivided Church.