Pope Saint Hilary (5th c.) was Bishop of Rome from 461 to 468. Not much is known of his early life other than that he was from Sardinia. He rose to prominence in the Church when he became archdeacon under Pope St. Leo the Great, working closely with him as a trusted aid. St. Leo sent Hilary as one of the papal legates to the Council of Ephesus in 449. There St. Hilary fought bravely against the monophysite heresy, for which his life was threatened. He was forced into hiding and fled back to Rome for safety. He was so highly esteemed that after Pope Leo's death he was elected to the papacy. As pope, St. Hilary fought for the rights of the papacy in spiritual matters against the Roman Emperor, and increased organization and discipline between the bishops and the Holy See. He also did much work in building, remodeling, and decorating Roman churches and other public places. Pope St. Hilary's feast day is February 28.