John of Coutances was a medieval Bishop of Worcester. John was a nephew of Walter of Coutances,

Bishop of Lincoln The Bishop of Lincoln is the ordinary (diocesan bishop) of the Church of England Diocese of Lincoln in the Province of Canterbury. The present diocese covers the county of Lincolnshire and the unitary authority areas of North Lincolnshire and ...

and was treasurer of the diocese of Lisieux before his uncle appointed him Archdeacon of Oxford sometime before December 1184. He also was

dean Dean may refer to: People * Dean (given name) * Dean (surname), a surname of Anglo-Saxon English origin * Dean (South Korean singer), a stage name for singer Kwon Hyuk * Dean Delannoit, a Belgian singer most known by the mononym Dean Titles * ...

of Rouen, and retained the treasurership of Lisieux while archdeacon.British History Online Archdeacons of Oxford
accessed on 3 November 2007 John was elected in January 1196 and consecrated on 20 October 1196. He died on 24 September 1198Fryde, et al. ''Handbook of British Chronology'' p. 279 or on 25 September. His death was commemorated on 24 September.British History Online Bishops of Worcester
accessed on 3 November 2007

Peter of Blois Peter of Blois ( la, Petrus Blesensis; French: ''Pierre de Blois''; ) was a French cleric, theologian, poet and diplomat. He is particularly noted for his corpus of Latin letters. Early life and education Peter of Blois was born about 1130. Ear ...

was commissioned by a Bishop of Worcester, probably John of Coutances to write a significant anti-Judaic treatise ''Against the Perfidy of Jews'' around 1190."A treatise addressed to John Bishop of Worcester, probably John of Coutances who held that See, 1194-8."
Medieval Sourcebook: Peter of Blois: Against the Perfidy of the Jews, before 1198 John should not be confused with a different John of Coutances who, in the 11th–12th century, wrote a chronicle of the Church at Coutances, France.

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References

British History Online Archdeacons of Oxford
accessed on 3 November 2007
British History Online Bishops of Worcester
accessed on 3 November 2007 * Bishops of Worcester Anglo-Normans 12th-century English Roman Catholic bishops 1198 deaths Year of birth unknown {{England-bishop-stub