Disclaimer: The following is 100% NOT my own work. It is a reproduction of an article made by John Collorafi, on his now defunct website Ancient Papacy.
Pope St. Silvester (314-335)
Pope Saint Silvester [314-335] led the church through a critical period of her existence. During his lifetime Constantine, the first emperor who openly fought under the standard of the cross, changed the character of the Roman empire forever.
During the era of Pope Silvester, the Arian heresy, which denied that the Son of God was truly divine, first appeared. Arianism was condemned at the Council of Nicea, the first ecumenical council .
Pope Silvester is venerated as a saint not only in the Catholic Church, but also in the Greek Church. The Menaion, or monthly liturgy of the Greek Church, celebrates his feast on January 2. The liturgical prayers, which speak of his “unerring teachings,” also include these words:
God-bearing Father Silvester, you appeared as a pillar of fire leading the sacred college in a sacred manner, and as an overshadowing cloud, delivering the faithful from the Egyptian [Arian] error and on every occasion leading them with unerring teachings to divine land... Enriched with the chair of the coryphaeus of the apostles... you appeared as the coryphaeus, initiating the sacred college into divine things, and you graced the... throne of the coryphaeus of the disciples... [Menaion Ianouariou, Athens 1979: 17, 22, 24]
Coryphaeus is a Greek work that means the leader. Its use here means that Pope Silvester was the successor of Saint Peter-- the coryphaeus [chief or leader] of the apostles.
The Coptic Church also has a commemoration of “Silvester, pope of Rome,” on January 2. The commemoration is found in the Synaxarion or book of saints of the Coptic Church. [PO 11: 552]
The Armenian Synaxarion or Book of Saints is known as the Yaysmavurk in Armenian. The Armenian book of saints also commemorates St. Silvester on January 2. The Armenian book of saints praises Saint Silvester’s holiness and even commemorates certain orders which he inscribed into canon law. The Yaysmavurk also says that the Council of Nicea met in accordance with the faith professed by Saint Silvester.
Copyright 2003, John Collorafi
Original translations by John Collorafi