Nielsen Hayden genealogy
Family: Marmaduke de Thweng / Lucy de Brus (F3716)
m. Abt 1242-
Male
Marmaduke de Thweng
Birth of Kilton in Brotton, Yorkshire, England Death Between 1282 and 1284 Burial Marriage Abt 1242 [1, 2, 3] Father Robert de Thweng | F3184 Group Sheet Mother Maud de Kilton | F3184 Group Sheet
Female
Lucy de Brus
Birth Death Aft 29 Mar 1282 Burial Father Peter de Brus | F437 Group Sheet Mother Hawise de Lancaster | F437 Group Sheet
Male
+ Marmaduke de Thweng
Birth of Kilton in Brotton, Yorkshire, England Death Bef 26 Feb 1323 Burial Spouse Isabel de Ros | F2441 Marriage 1273
Male
+ Robert de Thweng
Birth of Kilton in Brotton, Yorkshire, England Death Bef 1285 Burial Spouse Alice de Merlay | F10759 Marriage
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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.