Nielsen Hayden genealogy
Family: Richard de Douvres / Maud of Angus (F852)
m. Bef 2 Dec 1247-
Father | Male
Richard de Douvres
Born of Chilham, Kent, England 
Died Buried Married Bef 2 Dec 1247 [1] Father Richard fitz Roy | F4059 Group Sheet Mother Rohese de Douvres | F4059 Group Sheet
Mother | Female
Maud of Angus
Born Died 1261 Buried Other Spouse John Comyn | F865 Married Other Spouse Gilbert de Umfreville | F3548 Married 1243 Father Malcolm | F1257 Group Sheet Mother Mary de Berkeley | F1257 Group Sheet
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Sources - [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.
- [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.