Nielsen Hayden genealogy
Family: Piers de Gaveston / (Unknown mistress of Piers de Gaveston) (F10816)
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Father | Male
Piers de Gaveston
Born Bef Sep 1283 Gabaston, Bearn, Gascony, France 
Died 19 Jun 1312 Blacklow Hill near Warwick, Warwickshire, England Buried Married Other Spouse Margaret de Clare | F2201 Married 1 Nov 1307 Berkhamsted, Hertfordshire, England Father Arnaud de Gaveston | F1439 Group Sheet Mother Claramonde de Marsan | F1439 Group Sheet