Nielsen Hayden genealogy
Family: Hugh de Mortimer / Maud (F16665)
m. 1290-
Father | Male
Hugh de Mortimer
Born Abt 1275 of Richard's Castle, Herefordshire, England 
Died Bef 5 Aug 1304 Buried Married 1290 [1] Father Robert de Mortimer | F5246 Group Sheet Mother Joyce la Zouche | F5246 Group Sheet
Child 2 | Female
+ Margaret de Mortimer
Born Abt 14 Sep 1295 Died Bef 25 Dec 1435 Buried Spouse Geoffrey de Cornwall | F21394 Married Bef 1308
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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.