Michael I of Kiev
Metropolitan Michael I of Kiev is considered to be the first Metropolitan of Kiev and all Rus' from 988 until his death. He was canonised as a saint by the Russian Orthodox Church, being commemorated with a feast day on 15 June and 30 September.
Biography
Different historical accounts state that he was either Assyrian or Bulgarian. He is traditionally accounted as founding the St. Michael's Golden-Domed Monastery in Kiev as well as the Mezhyhirskyi Monastery near Vyshhorod with Greek monks in 988.Veneration and relics
His relics were originally located in the Church of the Tithes, then they were moved to the Near Caves of the Kiev Pechersk Lavra, and are now located in the Dormition Cathedral of the lavra.Michael's feast day is observed on June 15, September 30, and formerly on September 2.