Pope Sylvester I was the bishop of Rome from 31 January 314 until his death on 31 December 335. He filled the See of Rome at an important era in the history of the Western Church, though very little is known of his life. c. 300 – January 1, 336; died at about 36. Alive at the same time as Constantine the Great, Ausonius, Sextus Empiricus, Pappus of Alexandria, and Mark. Wiki link