Nielsen Hayden genealogy
Family: John de Fiennes / Maud de Monceux (F16723)
m. Bef 1332-
Father | Male
John de Fiennes
Born of White Waltham, Berkshire, England 
Died 5 Apr 1351 Buried Married Bef 1332 [1] Father John de Fiennes | F16725 Group Sheet Mother Joan le Forester | F16725 Group Sheet
Child 1 | Male
+ William de Fiennes
Born of Herstmonceux, Sussex, England 
Died 2 Dec 1359 Overseas 
Buried Spouse Joan de Say | F16722 Married Bef 1356
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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.