John Xenos (Greek: Ἰωάννης Ξένος; 970? – after 1027), also known as John the Hermit, was an itinerant ascetic, Christian saint and founder of churches and monasteries on Byzantine Crete. He wrote an autobiography in Greek, Bios kai politeia.[1]
John's life is known primarily through his autobiography, which survives in a 15th-century manuscript now in the Bodleian Library and the manuscript known as the Codex Cisamensis, copied in Crete in 1703. The Codex Cisamensis also contains a copy of John's will and testament.[2]