Hoel II, Duke of Brittany

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Hoel II of Cornouaille (c. 1031–1084) was Count of Kernev (French: Cornouaille, Breton: Kernev), from 1058 as Hoel V, and due to his marriage to Hawise, Duchess of Brittany, in 1066, he became Duke of Brittany jure uxoris. Hoel was the son of Alan of Cornwall and his wife, Judith of Nantes, granddaughter of the illegitimate son of Alan II of Brittany. Hoel started the House of Kernev (Cornouaille) of Brittany,[lower-alpha 1] which ruled the Duchy until 1156.

Little is known of the lives of Hawise and Hoel. However, this political marriage between the House of Rennes in the east and the House of Cornouaille in the west may have further strengthened Brittany at a time when external interference was attempted by William the Conqueror. After Hawise's death in 1072, Hoel acted as regent for his son, Alan IV, until the latter reached his majority[1] in 1084.

During his reign he faced several rebellions from Breton nobles. Geoffrey Grenonat of Rennes (a natural son of Duke Alan III of Brittany and thus a half-brother of Hawise) led a revolt and was joined by Ralph de Gael[2] who had returned to Brittany from England after the failure of the previous year's Revolt of the Earls. In 1076, Ralph having plotted against Hoel, was besieged at Dol, and the Conqueror came to Hoel's aid, after which Hoel finally made peace with Ralph.[3]


  1. The Cornouaille region of Brittany is distinct from the Cornwall region of Britain.



  • Keats-Rohan (1992). "The Bretons and Normans of England 1066-1154" Nottingham Medieval Studies (PDF).<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  •  Chisholm, Hugh, ed. (1911). [https%3A%2F%2Fen.wikisource.org%2Fwiki%2F1911_Encyclop%C3%A6dia_Britannica%2FRalph_de_Guader "Ralph de Guader" ] Check |ws link in chapter= value (help). Encyclopædia Britannica (11th ed.). Cambridge University Press.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  • B. Gregory Bailey, Meaghan E. Bernard, Gregory Carrier, Cherise L. Elliott, John Langdon, Natalie Leishman, Michal Mlynarz, Oksana Mykhed and Lindsay C. Sidders (January 2008). "Coming of Age and the Family in Medieval England". Journal of Family History. 33 (1). pp. 41–60. doi:10.1177/03631990073084492008.CS1 maint: uses authors parameter (link)<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
Hoel II, Duke of Brittany
House of Cornouaille
Died: 1084
Regnal titles
Preceded by
Conan II
Duke of Brittany
with Hawise
Succeeded by
Alan IV
Preceded by
Alain Canhiart
Count of Cornouaille