St Gelasius I

St Gelasius I (died 496), pope (492-496), born in Rome. He was one of the first popes to assert both the parity of the papacy with the temporal power and papal jurisdiction over the general councils of the Church. By ordering that both bread and wine be used in the Communion service, he drove out of the Church the heretical Manichaeans, who had vowed never to drink wine. Gelasius was among the foremost writers of his time. Many of his letters have been preserved, and by tradition he is credited with writing part of the so-called Leonine Sacramentary, a 6th-century compilation. He can hardly have had any part, however, in the 7th-century Sacramentary that commonly bears his name, Sacramentarium Gelasianum (Gelasian Sacramentary), which contains a section of the liturgy.