Basil, St., The Great, bishop of Cæsarea, in Cappadocia, his birthplace; studied at Athens; had Julian the Apostate for a fellow-student; the lifelong friend of Gregory Nazianzen; founded a monastic body, whose rules are followed by different monastic communities; a conspicuous opponent of the Arian heresy, and defender of the Nicene Creed; tried in vain to unite the Churches of the East and West; is represented in Christian art in Greek pontificals, bareheaded, and with an emaciated appearance (326-380). There were several Basils of eminence in the history of the Church: Basil, bishop of Ancyra, who flourished in the 4th century; Basil, the mystic, and Basil, the friend of St. Ambrose.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Bashkirtseff, Marie * Basil I.