Nielsen Hayden genealogy
Family: John, King of England / (Unknown daughter of William de Warenne) (F3999)
Henry II, King of England (1133-1189) 
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Henry the Young King, Titular King of England (1155-1183)  |
Matilda of England (1156-1189) |
| Richard I, King of England (1157-1199) |
| Eleanor of England (1161-1214) |
| William III de Warenne (1119-1148)
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| Ela of Ponthieu ( -1174)
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| Isabel de Warenne ( -1203) |
| John, King of England (1166-1216)
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| Richard fitz Roy ( -1246) |