St. Castorius is the patron saint of sculptors and his feast day is November 8th. Castorius, Claudius, Nicostratus, and Symphorian are called "the four crowned martyrs" who were tortured and executed in Pannonia, Hungary during the reign of Diocletian. According to legend, they were employed as carvers at Sirmium (Mitrovica, Yugoslavia) and impressed Diocletian with their art, as did another carver, Simplicius. Diocletian commissioned them to do several carvings, which they did to his ...