Nielsen Hayden genealogy
Family: William de Valence / Joan de Munchensy (F2905)
m. 13 Aug 1247Hugh X de Lusignan (1183-1249) 
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Isabel of Angoulême, Queen Consort of England (1188-1246)
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Hugh XI "le Brun" de Lusignan (1221-1250)  |
| Alice de Lusignan ( -1256) |
| Warin de Munchensy ( -1255)
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| Joan Marshal ( -1234)
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| William de Valence (1224-1296)
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| Joan de Munchensy (1230-1307)
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| Isabel de Valence ( -1305) |