Nielsen Hayden genealogy
Family: Diniz, King of Portugal / St. Isabel of Portugal (F15146)
m. 24 Jun 1282Afonso III, King of Portugal (1210-1279) 
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| Pedro III, King of Aragon; King of Sicily (1240-1285)
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Constance of Sicily (1249-1301)
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Federico II, King of Sicily (1272-1337)  |
| Diniz, King of Portugal (1261-1325)
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| St. Isabel of Portugal (1271-1336)
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| Costanza of Portugal (1290-1313) |
| Afonso IV, King of Portugal (1291-1357) |