Nielsen Hayden genealogy
Family: Thomas Willoughby / Elizabeth Neville (F15653)
m. Bef 27 May 1396-
Father | Male
Thomas Willoughby
Born of Boston, Lincolnshire, England 
Died Bef 20 Aug 1417 Buried Married Bef 27 May 1396 [1] Father Robert de Willoughby | F8481 Group Sheet Mother Margery la Zouche | F8481 Group Sheet
Mother | Female
Elizabeth Neville
Born Died Buried Father John de Neville | F15656 Group Sheet Mother Elizabeth le Latimer | F15656 Group Sheet
Child 1 | Male
+ John Willoughby
Born Abt 1400 of Kirton-in-Holand, Lincolnshire, England 
Died 24 Feb 1437 Buried Spouse Jane Welby | F15652 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.