CAIUS (Saint) Pope, Martyr (April 22) (3rd century) The successor (A.D. 283) of Pope Saint Eutychian. He is said to have been by birth a Dalmatian, and related to the Emperor Diocletian. Though he was not put to death for the Faith, his many sufferings in the cause of religion have earned for him the title of Martyr. He died A.D. 296. The formal recognition of the six Orders, Ostiarius, Lector, Exorcist, Acolyte, Subdeacon and Deacon, as preliminary to the Priesthood, is attributed to him.