Nielsen Hayden genealogy
Family: Henry Percy / Margaret de Neville (F11212)
m. 12 Jul 1358-
Father | Male
Henry Percy
Born 10 Nov 1341 of Warkworth, Northumberland, England 
Died 19 Feb 1408 Bramham Moor, near Tadcaster, Yorkshire, England 
Buried York Cathedral, York, Yorkshire, England 
Married 12 Jul 1358 [1] Brancepeth, Durham, England [1] 
Father Henry de Percy | F11215 Group Sheet Mother Mary of Lancaster | F11215 Group Sheet
Mother | Female
Margaret de Neville
Born Died 11 May 1372 Buried North Allerton, Yorkshire, England 
Father Ralph de Neville | F2990 Group Sheet Mother Alice de Audley | F2990 Group Sheet
Child 1 | Male
+ Henry "Hotspur" Percy
Born 20 May 1364 Died 21 Jul 1403 Shrewsbury, Shropshire, England 
Buried Spouse Elizabeth Mortimer | F11196 Married Bef 10 Dec 1379
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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.