Pope Dionysius of Alexandria, named "the Great," was the Pope of Alexandria from 248 until his death on November 17, 265 after seventeen years as a bishop. He was the first Pope to hold the title "the Great" (before a Bishop of Rome even). We have information on Dionysius because during his lifetime, Dionysius wrote many correspondence letters. Only one original letter survives to this day; the remaining letters are found re-written in the works of Eusebius.