Sylvius of Toulouse
Saint Sylvius of Toulouse was bishop of Toulouse from 360 AD to 400 AD. He was succeeded by Saint Exuperius. Sylvius began construction of the basilica of St. Sernin of Toulouse towards the end of the 4th century. The church was later completed by his successor Exuperius. Sylvius' remains were later transferred to the church he had begun.