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For the given name Ernulf, Earnulf, see Arnulf.
Bishop of Rochester
See Diocese of Rochester
Appointed 28 September 1114
Term ended 15 March 1124
Predecessor Ralph d'Escures
Successor John
Other posts Prior of Christ Church, Canterbury
Abbot of Peterborough
Consecration 26 December 1115
Personal details
Born 1040
Died 15 March 1124
Denomination Catholic

Ernulf (1040, Beauvais – 15 March 1124) was a French Benedictine architect, and Bishop of Rochester, Kent, England.


Ernulf studied under Lanfranc at the monastery of Bec, entered the Benedictine Order, and lived long as a brother in the monastery of St-Lucien, Beauvais. At the suggestion of Lanfranc he went to England, some time after 1070, and joined the monks of Christ Church, Canterbury.[1] He studied under Ivo of Chartres, and was considered an expert on canon law.[2]

Ernulf was made prior by Archbishop Anselm, and in 1107 Abbot of Peterborough,[1] where he was one of the teachers of Hugh Candidus;[3] on 28 September 1114 he was invested as Bishop of Rochester by Ralph d'Escures Archbishop of Canterbury,[4] and was consecrated on 26 December 1115.[5]

While at Canterbury, Ernulf had taken down the eastern part of the church which Lanfranc had built, and erected a far more magnificent structure. This included the famous crypt (Our Lady of the Undercroft), as far as Trinity Tower. The chancel was finished by his successor Conrad. The chapel of St. Andrew is also part of Ernulf's work.

At Peterborough and Rochester, Ernulf had the old buildings torn down and erected new dormitories, refectories, chapter house, etc.

Ernulf is either the author of the Textus Roffensis (a large collection of documents relating to the Church of Rochester); "Collectanea de rebus eccl. Ruffensis"[6] or it was compiled for his use.[2] He also authored several canonical and theological treatises.

Ernulf died on 15 March 1124.[5]


  1. ^ a b British History Online Priors of Canterbury accessed on 30 October 2007
  2. ^ a b Williams English and the Norman Conquest p. 156
  3. ^ Dictionary of National Biography :Hugh Candidus. Oxford University Press. 1885–1900. Retrieved 8 August 2010. 
  4. ^ British History Online Bishops of Rochester accessed on 30 October 2007
  5. ^ a b Fryde, et al. Handbook of British Chronology p. 267
  6. ^ In Patrologia Latina, CLXIII, 1443 sqq.


Catholic Church titles
Preceded by
Ralph d'Escures
Bishop of Rochester
Succeeded by

 This article incorporates text from a publication now in the public domainHerbermann, Charles, ed. (1913). Catholic Encyclopedia. Robert Appleton Company.