Nielsen Hayden genealogy
Agnes de Montfort
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Name Agnes de Montfort [1] Gender Female Death 15 Dec 1181 [1, 2, 3, 4] Person ID I5593 Ancestry of PNH, TNH, and others | Ancestor of AP, Ancestor of DDB, Ancestor of EK, Ancestor of GR, Ancestor of KL, Ancestor of LD, Ancestor of LDN, Ancestor of LMW, Ancestor of TNH, Ancestor of TSW, Ancestor of TWK Last Modified 16 Jun 2026
Father Amauri de Montfort, b. of Montfort-l'Amaury, Yvelines, Île-de-France, France
d. Aft 1136Mother Agnes de Garlande Family ID F4444 Group Sheet | Family Chart
Family 
Waleran of Meulan, b. 1104 d. 9 Apr 1166 (Age 62 years) Marriage Abt 1141 [1, 2, 3] Children + 1. Isabel of Meulan d. 10 May 1220 + 2. Amaury de Meulan d. Bef 1196 + 3. Robert de Beaumont, b. Abt 1142 d. 16 Aug 1204, Poitiers, Vienne, Poitou-Charentes, France
(Age 62 years)Family ID F4055 Group Sheet | Family Chart Last Modified 17 Jun 2026
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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.
- [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.
- [S145] Ancestral Roots of Certain American Colonists Who Came to America Before 1700 by Frederick Lewis Weis and Walter Lee Sheppard, Jr. 8th edition, William R. Beall & Kaleen E. Beall, eds. Baltimore: Genealogical Publishing Company, 2004, 2006, 2008.
- [S49] Genealogics by Leo Van de Pas, continued by Ian Fettes and Leslie Mahler.
- [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.