Helladius, Crescentius, Paul and Dioscorides

Saints Helladius, Crescentius, Paul and Dioscorides are honoured as martyrs burned to death at Rome, either in 244 or in 326. They are commemorated on 28 May by the Orthodox Church and by the Roman Catholic Church.

One scholar, Professor Mauricio Saavedra, holds that this group was brought into the calendar by Cardinal Baronius and is fictitious. The old Roman and British Martyrologies place their deaths at Corinth, not at Rome.

This Crescentius should not be confused with Crescentius of Rome, who died in 303, and this Helladius is not the bishop and martyr commemorated on the same day.