Pope Gelasius I (†496) was the bishop of Rome from 1 March 492 to his death. Gelasius was a prolific author whose style placed him on the cusp between Late Antiquity and the Early Middle Ages. During his pontificate he called for strict Catholic orthodoxy, more assertively demanded obedience to papal authority, and, consequently, increased the tension between the Western and Eastern Churches. The feast of Saint Valentine of February 14 was first established in 496 by Pope Gelasius, who included Valentine among all those "... whose names are justly reverenced among men, but whose acts are known only to God." He was canonized in both the Catholic and Orthodox traditions; his feast day is 21 November.
Pope Symmachus (†514) was the bishop of Rome from 22 November 498 to his death. His tenure was marked by a serious schism over who was elected pope by a majority of the Roman clergy. He was canonized in both the Catholic and Orthodox traditions; his feast day is 19 July.