St. Cornelius Custom MedalAvailable in Sterling Silver, 14kt Yellow Gold, and 14kt Gold Filled. Three sizes to choose from: Large: 1 x 3 4 inch Standard: 3 4 x 1 2 inch Charm: 1 2 x 1 4 inch Saint (Pope) Cornelius was the Bishop of Rome until his Martyrdom in 253. Emperor Decius persecuted Christians, ordering all Citizens to perform a religious sacrifice or face death. Many Christians refused and were martyred. After Decius was killed in Battle, Cornelius became pope over his