John of Canterbury
He began as a clerk to Theobald of Canterbury. He became Treasurer of York in 1152. At the wish of Henry II of England, he was made Bishop of Poitiers, and consecrated at the Council of Tours in 1163. He was a close supporter of Thomas Becket in his quarrel with Henry II.
He resigned his position at Lyon, to become a monk at Clairvaux, where he lived out his life. He was the addressee in his retirement of an important papal letter, Cum Marthae circa, dated 29 November 1202 (see Eucharist).
- Known also as John of Poitiers, John of Belmeis, Jean de Belmeia, Jean aux Belles-Mains, Jean des Bellesmains and Jean de Bellesmes.
- John Gillingham, Richard the Lionheart (2nd edition 1989), p. 280.
- Frank Barlow, Thomas Becket (1986), p. 30.
- Barlow, p. 93.
- Michael Costen (1997), The Cathars and the Albigensian Crusade, p. 106.
- Gabriel Audisio (1999), The Waldensian Dissent: Persecution and Survival, C. 1170-c. 1570, p. 15.
- Barlow, p. 31.
- Archer, Thomas Andrew (1885). "Belmeis, John". In Stephen, Leslie. Dictionary of National Biography. 4. London: Smith, Elder & Co.
- Dunbabin, Jean. "Canterbury, John of (c.1120–1204?)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/2062. (Subscription or UK public library membership required.)