Nielsen Hayden genealogy
Family: Marmaduke de Thweng / Lucy de Brus (F3716)
m. Abt 1242-
Father | Male
Marmaduke de Thweng
Born of Kilton in Brotton, Yorkshire, England Died Between 1282 and 1284 Buried Married Abt 1242 [1, 2, 3] Father Robert de Thweng | F3184 Group Sheet Mother Maud de Kilton | F3184 Group Sheet
Mother | Female
Lucy de Brus
Born Died Aft 29 Mar 1282 Buried Father Peter de Brus | F437 Group Sheet Mother Hawise de Lancaster | F437 Group Sheet
Child 1 | Male
+ Marmaduke de Thweng
Born of Kilton in Brotton, Yorkshire, England Died Bef 26 Feb 1323 Buried Spouse Isabel de Ros | F2441 Married 1273
Child 2 | Male
+ Robert de Thweng
Born of Kilton in Brotton, Yorkshire, England Died Bef 1285 Buried Spouse Alice de Merlay | F10759 Married
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Sources - [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.
- [S76] The Oxford Dictionary of National Biography. Oxford University Press, 2004-ongoing.
- [S128] The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant ed. Vicary Gibbs, H. A. Doubleday, Duncan Warrand, Howard de Walden, Geoffrey H. White and R. S. Lea. 2nd edition. 14 volumes (1-13, but volume 12 spanned two books), London, The St. Catherine Press, 1910-1959. Volume 14, "Addenda & Corrigenda," ed. Peter W. Hammond, Gloucestershire, Sutton Publishing, 1998.
- [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.