Papias was a Greek Apostolic Father, Bishop of Hierapolis, and author who lived c. 60 – c. 135 AD. He wrote the Exposition of the Sayings of the Lord in five books.
Polycarp was a Christian bishop of Smyrna. According to the Martyrdom of Polycarp, he died a martyr, bound and burned at the stake, then stabbed when the fire failed to consume his body.
Theophilus was Patriarch of Antioch from 169 until 182. He succeeded Eros c. 169 AD and was succeeded by Maximus I c. 183 AD. His death probably occurred about 182. He is included among the dozen or so Christian apologists of his day.