Nielsen Hayden genealogy
Family: Baldwin de Revières / Margaret of Savoy (F10154)
m. 1257-
Male
Baldwin de Revières
Birth 1 Jan 1236 Death Bef 13 Sep 1262 France 
Burial Breamore Priory, Hampshire, England Marriage 1257 [1] Father Baldwin de Revières | F10153 Group Sheet Mother Amice de Clare | F10153 Group Sheet
Female
Margaret of Savoy
Birth Death Bef 14 May 1292 Burial Other Spouse Robert Aguillon | F10155 Marriage 1269 Father Thomas of Savoy | F10163 Group Sheet Mother Béatrix di Fiesco | F10163 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.