Apostle Quadratus of the Seventy [his service is sung on the 22nd]

Quadratus is counted among the seventy disciples sent out in the Gospel of Luke. Church tradition says he preached in Athens and Magnesia, and that he was a bishop. Eusebius, in the fourth century, names a Quadratus who presented a written defence of the Christian faith to Emperor Hadrian, perhaps in 124 or 125; only a fragment of it survives. Eusebius says he was a disciple of the apostles' generation.

Whether the apostle, the bishop of Athens and the writer were one man is debated. The Church dates his death to about 130; his service is sung on the 22nd.