Life and Martyrdom
The synaxarion records that Theophilus was born and raised in Constantinople, the Byzantine capital, and attained high standing in the empire as both a commander of the Greek armies and a senator. This dual identity, military and civil, marks him as a member of the Byzantine aristocratic class of his day.
During a period of war between the Byzantine Empire and its Arab adversaries, Theophilus was taken prisoner. His captors demanded that he renounce Christ, but he refused and held firm to his faith. He was confined on Cyprus, where he remained for four years.
At the end of his imprisonment, having continued to confess Christ, he was beheaded in 784. The Church remembers him among the martyrs commemorated on January 30.