John I, Count of Ponthieu

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ChartsAncestors of Adele La Force
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Ancestors of Harriet Hanson Robinson (#2)
Ancestors of Wilford Ervie Billings
Robert II "the Pious," King of France to William Leete
John I, Count of Ponthieu, son of Guy II and Ida, died in 1191 at the siege of Acre.1,2

John married (1) Mathilda (…), whose ancestry is unknown (or not traced here);3 he married (2) Laurie de Saint Valéry, daughter of Reginald de Saint Valéry;4,1 he repudiated the marriage before 1170;5 he married (3) Beatrice de Saint Pol, daughter of Anselme de Saint-Pol "Candavène," Count of St. Pol and Eustachie de Champagne, before 1177.1,2,3

Family 1

Mathilda (…)
This person was last edited on9 Apr 2021


  1. [S520] Frederick Lewis Weis, Walter Lee Sheppard Jr., William R. Beall and Kaleen E. Beall, Ancestral Roots of Certain American Colonists Who Came to America before 1700… ., 8th ed. (Baltimore: Genealogical Publishing Co., 2004), 109-27, further cited as Weis, Sheppard, Beall, and Beall, Ancestral Roots, 8th ed.
  2. [S1845] Henry James Young, The Blackmans of Knight's Creek: Ancestors and Descendants of George and Maria (Smith) Blackman (Carlisle, Pennsylvania: s.p., 1980), 108-109 (Gen XXVI 113-114), further cited as Young, Blackmans of Knight's Creek.
  3. [S248] George Andrews Moriarty, The Plantagenet Ancestry of King Edward III and Queen Philippa (Salt Lake City, Utah: Mormon Pioneer Genealogy Society, 1985), 113, further cited as Moriarty, Plantagenet Ancestry.
  4. [S2174] Gary Boyd Roberts, The Royal Descents of 900 Immigrants to the American Colonies, Quebec, or the United States Who Were Themselves Notable or Left Descendants Notable in American History (two vols., Baltimore, Maryland: Genealogical Publishing, 2018), 2:853, further cited as Roberts, RD900.
  5. [S2073] K. S. B. Keats-Rohan, Domesday Descendants: A Prosopography of Persons Occurring in English Documents 1066-1166: II. Pipe Rolls to Cartae Baronum (Woodbridge, England: Boydell Press, 2002), 698, further cited as Keats-Rohan, Domesday Descendants.
  6. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families (Five vols., Salt Lake City, Utah: s.p., 2013), 2:470 (Dreux 8), further cited as Richardson, Royal Ancestry.
  7. [S520] Weis, Sheppard, Beall, and Beall, Ancestral Roots, 8th ed., 109-28.
  8. [S1947] Richardson, Royal Ancestry, 3:23 (France 6.ii).