Jean I "le Roux" (1217-8 October 1286), Duke of Brittany

Same as
Additional names
Parents
Father:1Pierre I "Mauclerc" (1187-end of May 1250), Duke of Brittany
Mother:2Alix de Thouars (1200-21 October 1221), Dss of Brittany
Spouses and relationship events
Married:3Blanche de Champagne (before 19 January 1225-11 August 1283)
Marriage-contract signed at Château-Thierry, Aisne, 16 January 1236.
Children
Children with Blanche de Champagne:
Jean II (3/4 January 1239-16 November 1305), Duke of Brittany4
Pierre de Bretagne (2 April 1241-19 October 1268), Seigneur de Dinan, Léon, Hédé, Hennebont et La Roche-Derrien5
Alix de Bretagne (6 June 1243-2 August 1288), Dame de Pontarcy et de Brie-Comte-Robert6
Thibaut de Bretagne (23 July 1245-23 October 1246)7
Thibaut de Bretagne (9 November 1247-young)8
Eleonore de Bretagne (end of 1248-young)9
Nicolas de Bretagne (8 December 1249-14 August 1251)10
Robert de Bretagne (6 March 1251-4 February 1259)11
Attributes
Occupation:12Seigneur de Muzillac
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