Nielsen Hayden genealogy
Family: Simon I de Senlis / Maud of Northumberland (F6027)
m. Bef 1091-
Male
Simon I de Senlis
Birth Death Abt 1111 La Charite-sur-Loire, Nievre, France 
Burial Marriage Bef 1091 [1, 2, 3, 4] Father Landri de Senlis | F927 Group Sheet Mother Ermengarde | F927 Group Sheet
Female
Maud of Northumberland
Birth Abt 1072 Death Between 1130 and 1131 Burial Scone, Perthshire, Scotland Other Spouse David I, King of Scotland | F5533 Marriage Bef Jul 1113 Father Waltheof | F2414 Group Sheet Mother Judith of Lens | F2414 Group Sheet
Female
+ Maud de Senlis
Birth Abt 1092 Death Aft 1158 Burial Spouse Robert fitz Richard | F2688 Marriage 1112 Spouse Saher I de Quincy | F1267 Marriage Aft 1136
Male
+ Simon II de Senlis
Birth Abt 1103 Death Aug 1153 Burial St. Andrew's, Fife, Scotland Spouse Isabel of Leicester | F2473 Marriage Bef 1138
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Sources - [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013., "in or before 1090".
- [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., "abt. 1090".
- [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., "perhaps as early as 1090".
- [S6417] David L. Greene, "The Royal Ancestry of the Ipswich (Massachusetts) and Long Island Lawrence Families." The Genealogist 10:3, 1989., "about 1090".
- [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013., "in or before 1090".