Nielsen Hayden genealogy
Family: Maurice fitz Robert fitz Harding / Alice de Berkeley (F4859)
m. Between 1153 and 1154-
Male
Maurice fitz Robert fitz Harding
Birth of Berkeley, Gloucestershire, England 
Death 16 Jun 1190 Burial Brenford, Middlesex, England Marriage Between 1153 and 1154 [1] Bristol, Gloucestershire, England [1] Father Robert fitz Harding | F6630 Group Sheet Mother Eva | F6630 Group Sheet
Male
+ Thomas de Berkeley
Birth Abt 1170 Death 29 Nov 1243 Burial Abbey Church of St. Augustine, Bristol, Gloucestershire, England Spouse Joan de Somery | F251 Marriage Abt 1217
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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.