NPNF2-01. Eusebius Pamphilius: Church History, Life of Constantine, Oration in Praise of Constantine

Chapter XIII.—Anencletus, the Second Bishop of Rome.

After Vespasian had reigned ten years Titus, his son, succeeded him.⁶⁹⁸ In the second year of his reign, Linus, who had been bishop of the church of Rome for twelve years,⁶⁹⁹ delivered his office to Anencletus.⁷⁰⁰ But Titus was succeeded by his brother Domitian after he had reigned two years and the same number of months.⁷⁰¹