Ancestry of Prince
William

Prince of Wales

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27th 28th 29th Generation 30th Generation

27th Generation

28th Generation

29th Generation

30th Generation

Gilbert de Clare

 (c1180–1230)

Isabel Marshal

 (1200–1239/40)

John de Lacy

 (c1192–1240)

Margaret de Quincy

 (c1206–1266)

Henry III, King of England

 (1207–1272)

Eleanor of Provence

 (c1217–1291)

Ferdinand III, King of Castile

 

Joanna of Ponthieu

 

31st Generation

William photo by InSapphoWeTrust (CC BY-SA 2.0)