Ancestry of Prince
William

Prince of Wales

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25th 26th 27th Generation 28th Generation

25th Generation

26th Generation

27th Generation

28th 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

 

29th Generation

William photo by InSapphoWeTrust (CC BY-SA 2.0)