<sod>'''Saint John Cassian''' ({{circa}} 360 – 435 AD), '''John the Ascetic''', or '''John Cassian the Roman''', was a [[Christian monk]] and [[theology|theologian]] celebrated in both the Western and Eastern Churches for his mystical writings. Cassian is noted for his role in bringing the ideas and practices of [[Desert Fathers|Christian]] [[monasticism]] to the early medieval West.<eod>
<sod>'''Saint John Cassian''' ({{circa}} 360 – 435 AD), '''John the Ascetic''', or '''John Cassian the Roman''' (Latin: Joannes Eremita Cassianus, Joannus Cassianus, or Joannes Massiliensis)<ref>{{Cite web|url=http://www.ccel.org/ccel/cassian|title=John Cassian|last=|first=|date=|website=Christian Classics Ethereal Library|publisher=|access-date=5 April 2016}}</ref>, was a [[Christian monk]] and [[theology|theologian]] celebrated in both the Western and Eastern Churches for his mystical writings. Cassian is noted for his role in bringing the ideas and practices of [[Desert Fathers|Christian]] [[monasticism]] to the early medieval West.<eod>