Nielsen Hayden genealogy
Family: Hubert de Burgh / Isabel of Gloucester (F2042)
m. Sep 1217-
Male
Hubert de Burgh
Birth Abt 1170 Death 1243 Burial Black Friars, Holborn, London, England 
Marriage Sep 1217 [1] Other Spouse Beatrix de Warenne | F5207 Marriage Aft 1208 Other Spouse Margaret of Scotland | F749 Marriage Jun 1221 York, Yorkshire, England Father Walter de Burgh | F4312 Group Sheet Mother Alice | F4312 Group Sheet
Female
Isabel of Gloucester
Birth Death 14 Oct 1217 Burial Other Spouse John, King of England | F121 Marriage 29 Aug 1189 Marlborough, Wiltshire, England Father William fitz Robert | F5507 Group Sheet Mother Hawise of Leicester | F5507 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., "[P]robably a few days before her death".
- [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., "[P]robably a few days before her death".