Caius, Pope Was Pope from Dec.17 283 till his death in 296. He was the son of Gaius, or, according to St. Susanna of Concordius,a relative of the emperor Diocletian, and became pope on Dec.17,283. His tomb, with the original epitaph, was discovered in the catacombs of Calixtus and in it the ring with which he used to seal his letters. (Bio by: Daddy) Catacombs of Saint Callixtus, Rome, Provincia di Roma, Lazio, Italy