PONTHIEU Guillaume

Abt 0915 - Abt 0965  (50 years)

• Name	PONTHIEU Guillaume
  Birth	Abt 0915	Montreuil, Ponthieu, France
  Gender	Male
  Death	Abt 0965	Ponthieu, Somme, Picardie, France
  Notes	Guillaume de Ponthieu was previously shown as a husband of Maud de St. Pol. No evidence has been found for the existence of Maud de St. Pol and she has therefore been delinked as a wife of Guillaume. Day-1904 11:27, 8 January 2020 (UTC) Name Guillaume 1er° [1] Birth He was born ca 915-920 [1] Death He died ca 980.[1] Titles comte de Ponthieu et de Montreuil(~957-979) [1] et de Boulogne (965-969)[1] Marriage Mathilde ?[1] Parents He was the son of Ro(t)ger (Rotgaire) + 957 comte de Ternois (937) et de Montreuil (948/57) (Montreuil assiégé par le comte de Flandres en 943)[1] Issue His children included Hilduin, Arnoul, Hughes, Elisabeth, and Bernard Hilduin III ° ~933/45 + ~1009 comte de Montdidier et Ponthieu, seigneur de Ramerupt, Arcis et Breteuil, comte de Roucy (par mariage) ép.1) ? Hersende «La Pieuse» de Ramerupt ° ~950 comtesse d’Arcies ép.2) Alix (Adélaïde) de Roucy[1] Arnoul comte de Boulogne ? sans postérité ou Mahaut qui ép. Adolphe, comte de Boulogne + 933, Arnulph et Eustache ?[1] Hugues 1er comte de Ternois (979-990) postérité qui suit (p.10)[1] Elisabeth Abbesse de SainteAustreberthe (Montreuil[1] Bernard seigneur d’Ardres puis de Saint-Valéry postérité des seigneurs de Saint-Valéry[1] Children linked on WikiTree The following children are linked on Wikitree: Ernicule (Boulogne) de Boulogne, b. 935 Hildouin (Ponthieu) de Ponthieu, b. 935 Hugo (Calvacamp) DeMaer, b. 940 Godchilde (Ponthieu) de Belleme, b. 944 was previously linked as a daughter of Guillaume de Ponthieu, born 915, but no basis for this relationship has been found. Research Notes Profiles Previously Linked The following profiles have previously been linked together. As part of the Disproven Existence Project, these links are being severed; Mother: Mahaut de Crequy Daughter: Maud de St Pol Daughter's Spouse: Malahule Haldrick (Ragnvaldsson) Regraldsson Daughter's Spouse: Guillaume (Ponthieu) de Ponthieu Children Richard (St Sauveur) de St Sauveur Ranulph (Bayeux) de Bayeux Hugo (Cavalcamp) de Calvacamp Asperling (Vaudreuil) de Vaudreuil Hildouin De Pohthieu Ernicule (Boulogne) de Boulogne Hildouin (Ponthieu) de Ponthieu Hugo (Calvacamp) DeMaer Sources ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 Etienne Pattou Comtes de Ponthieu et Montreuil Dernière mise à jour : 11/02/2018. Accessed Sept 20, 2018 jhd
  Person ID	I59086	Freeman-Smith
  Last Modified	27 Jan 2026

  
  

  Father	PONTHIEU Rotgaire,   b. Abt 0894, Picardie, France d. 0957, Ponthieu, Somme, Picardie, France (Age 63 years)
  Relationship	natural
  Family ID	F347339	Group Sheet  |  Family Chart

  
  

  Family
  Children	1. PONTHIEU Hildouin,   b. Abt 0935, Ponthieu, Ain, Rhone-Alpes, France d. Abt 0981, Jerusalem, Holy Land (Age 46 years)  [Father: natural]
  Family ID	F347338	Group Sheet  |  Family Chart
  Last Modified	27 Jan 2026