Bishop of Colonia in Palestine and a hermit. Born in Nicopolis, Armenia, he established a monastery at the age of eighteen. Appointed a bishop at the age of twenty-eight, he spent nine years in his office before retiring to Jerusalem to embrace the eremitical life. Through a vision, he found his way to the monastery, or laura, of St. Sabas, asking to be walled up and living for seventy-five years as a silent recluse.