Nielsen Hayden genealogy
Family: Roger de Merlay / Isabel de Ros (F10351)
m. Bef 1241-
Father | Male
Roger de Merlay
Born of Morpeth, Northumberland, England 
Died Bef 4 Dec 1265 Buried Married Bef 1241 [1] Father Roger de Merlay | F10355 Group Sheet Mother Ada | F10355 Group Sheet
Mother | Female
Isabel de Ros
Born Died Bef 7 May 1275 Buried Father Robert de Ros | F5709 Group Sheet Mother
Child 1 | Female
+ Isabel de Merlay
Born Abt 1256 Died Aft Jun 1303 Buried Spouse Robert de Somerville | F10345 Married Bef 7 May 1275
Child 2 | Female
+ Alice de Merlay
Born Abt 1258 Died Bef 7 Feb 1268 Buried Spouse Robert de Thweng | F10759 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.