Isidore, officer of the fleet
According to the tradition, Isidore was born in Alexandria, Egypt, and served as an officer in the Roman navy stationed at Chios. When his Christian faith was discovered — by the account of one source through a centurion named Julius — he was brought before the fleet's commander, the admiral Numerius. Isidore refused to renounce Christ or to worship the gods of the state, declaring, in the words preserved by the synaxarion, that he would never cease to confess Christ while breath remained in his body.
He was subjected to severe tortures: beaten with whips, dragged over rocky ground, and, by some accounts, having his tongue cut out. The synaxarion relates that Numerius was himself struck dumb, losing the power of speech. By the admiral's order Isidore was beheaded, and his body was cast into a well or cistern.