Nielsen Hayden genealogy
Family: John de Burgh / Hawise de Lanvallay (F11561)
m. Bef 1227-
Father | Male
John de Burgh
Born 1210 of Burgh, Norfolk, England 
Died Bef 7 Jan 1275 Buried Married Bef 1227 [1] Father Hubert de Burgh | F5207 Group Sheet Mother Beatrix de Warenne | F5207 Group Sheet
Mother | Female
Hawise de Lanvallay
Born Died 1249 Buried St. John's Abbey, Colchester, Essex, England 
Father William de Lanvallay | F11563 Group Sheet Mother Maud Pecche | F11563 Group Sheet
Child 1 | Male
+ John de Burgh
Born Abt 1235 of Walkern, Hertfordshire, England 
Died Bef 3 Mar 1280 Buried Spouse Cecily de Balliol | F11556 Married
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Sources - [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.
- [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.