Apollonius of Alexandria

The Holy Martyr Apollonius of Alexandria was one of a group of four martyrs that included Philemon, Arianus, and Theotychus who suffered for the Faith at the city of Antinoe in Egypt during the reign of emperor Diocletian in the late third century. The feast day for St. Apollonius, as well as for the other martyrs is December 14 .

Source: OrthodoxWiki