Isabelle de Bretagne was born 1411 to Jean V de Bretagne (1389-1442) and Jeanne de Valois (1391-1433) and died 13 January 1442 in Auray of unspecified causes. She married Guy XIV de Laval (1406-1486) 1 October 1430 JL in Redon. Notable ancestors include Henry II of England (1133-1189), William I of England (1027-1087), Charlemagne (747-814), Hugh Capet (c940-996), Alfred the Great (849-899). Ancestors are from the United Kingdom, France, Germany, Russia, Ukraine, Belgium, England, Italy, Spain, Hungary, the Netherlands, the Czech Republic, Turkey, the Byzantine Empire, Sweden, Belarus.


Offspring of Guy XIV de Laval and Isabelle de Bretagne (1411-1442)
Name Birth Death Joined with
Jeanne de Laval (1433-1498) 10 November 1433 Auray, Brittany, France 19 December 1498 Chateau de Beaufort-en-Vallée, Maine-et-Loire, France René of Naples (1409-1480)

Guy XV de Laval (1435-1500)
Jean de Laval (1437-1476) 14 February 1437 14 August 1476 Jeanne du Périer (c1455-1508)

Pierre de Laval (1442-1493)

Common ancestors of Isabelle de Bretagne (1411-1442) and Guy XIV de Laval (1406-1486)

  1. Arthur II de Bretagne (1262-1312)
  2. Beatrice de Montfort (c1248-1312)
  3. Beatrice of England (1242-1275)
  4. Jean II de Bretagne (1239-1305)
  5. Robert IV de Dreux (1241-1282)
  6. Yolande de Montfort (1263-1323)

Footnotes (including sources)

‡ General