Life and Martyrdom
According to the OCA synaxarion, Eleutherius held the office of cubicularius — described as an illustrious and rich chamberlain at the Byzantine court. Despite the wealth and access that came with his position, he is said to have prioritized spiritual rather than material concerns.
After his baptism he devoted himself to daily worship through psalmody and to virtuous conduct. The August 4 account relates that he relocated to a country estate and there constructed a church at his residence.
A servant, acting (in the words of the synaxarion) on malicious impulses, denounced Eleutherius to the emperor, who was still pagan at the time, reporting that the chamberlain had become a Christian. When imperial efforts to persuade him to renounce Christianity failed and he refused to perform pagan sacrifices, the emperor ordered his execution by beheading.