Marcus of Calabria
Little is known of his life career or Episcopal work, and he would have remained largely unknown to history except that he was one of only five delegates from the Catholic Western Roman Empire to attend the first Council of Nicene.
He is listed as delegate 208 in the Greek version of the Patrum Nicaenorum Nomina as being Bishop of Calabria in Southern Italy; however, he is listed as a bishop from Dacia in the Syriac and the Greek text "Nicene Catalogue of Fathers and Cities", by Theodorus Lector, both of which record the proceedings of the First Council of Nicaea.
- Arnold Hugh Martin Jones, Constantine and the Conversion of Europe University of Toronto Press 1962 p 130.
- Richard Patrick Crosland Hanson, R. P. Hanson, The Search for the Christian Doctrine of God: The Arian Controversy 318–381 Continuum, 2005 p156
- Patrum Nicaenorum nomina page 89
- W. A. Jurgens, The Faith of the Early Fathers: St. Augustine to the end of the patristic age, Liturgical Press 1970 p280.
- Charles M. Odahl, Constantine and the Christian Empire, Routledge 2010 p 156.
- Patrum Nicaenorum Nomina.
- Extracts from the Syriac ms. No. 14528 in the British Museum
- Nicene Theodorus Lector Catalogue of Fathers and Cities
- Updated English Translations of the Creed, Rulings (Canons), and Letters Connected to the Council.
- Herbermann, Charles, ed. (1913). "The First Council of Nicaea". Catholic Encyclopedia. New York: Robert Appleton Company.
- Council of Nicaea in the 1911 Encyclopædia Britannica.
- The Road to Nicaea A descriptive overview of the events of the Council, by John Anthony McGuckin.
- The Council of Nicaea and the Bible This article deals with the legend that the canon of the bible was discussed at the council.