Il est marié avec Beatrix de Saint-Pol.
Ils se sont mariés
Enfant(s):
JEAN [I] de Ponthieu (-Acre 30 Jun 1191). "Wido comes Pontivii" confirmed freedoms over his lands, with the consent of "patris mei Willermi et domine Ele matris mee, fratris mei Johannis et uxoris mee Ide et filii mei Johannis" by undated charter[750]. He succeeded his father as Comte de Ponthieu. "Jean comte de Ponthieu" founded l’Hôtel-Dieu d’Abbeville by charter dated 1158, witnessed by "Ide comtesse…"[751]. Robert of Torigny records that Henry II King of England granted "castrum Alenceium et Rocam Mabiriæ" to "Willermus Talavacius comes Sagiensis et filius eius Johannes et iterum Johannes nepos eius filius Guidonis primogeniti sui comitis Pontivi" in 1166[752]. Robert of Torigny records the death in 1171 of "Guillermus Talavercius comes Pontivi" and the succession of "Johannes nepos suus…ex Guidone primogenitor suo"[753]. "Jean comte de Ponthieu, Guillaume son fils, et Beatrix son épouse" granted revenues to "Baudin et Simon son frère…" by charter dated 1186[754]. m firstly (after 1158) MATHILDE, daughter of ---. The primary source which confirms her marriage has not been identified. 1162. m secondly (after 1162 [repudiated, before 1170]) [as her first husband,] LAURE de Saint-Valéry, daughter of RENAUD de Saint-Valéry & his [second] wife ---. The primary source which confirms her marriage has not been identified. Domesday Descendants records that Renaud de Saint-Valéry was the father of "Laura wife first of John count of Ponthieu, by whom she was repudiated, and secondly of Alleaume de Fontaines", but does not cite the corresponding primary sources[755]. [She married secondly Alleaume de Fontaines.] m thirdly (before 4 Dec 1170) BEATRIX de Saint-Pol, daughter of ANSELME "Candavène" Seigneur de Lucheux et de Tarentefirt [later Comte de Saint-Pol] & his first wife --- (-1202 or after). "Johannes comes Pontivi" confirmed rights of the monks of Val, with the consent of "Guidonis fratris mei et Beatricis comitisse uxoris mee", by charter dated 1177, which also names "mater mea Ida comitissa"[756]. The primary source which confirms her parentage has not been identified. "Jean comte de Ponthieu, Guillaume son fils, et Beatrix son épouse" granted revenues to "Baudin et Simon son frère…" by charter dated 1186[757].
Comte Jean [I] & his third wife had [four] children:
ADELA de Ponthieu (-after 18 Oct 1241)
GUILLAUME [II] "Talvas" de Ponthieu (after 1178-6 Oct 1221, bur Abbaye de Valloires, Somme).
MARGUERITE de Ponthieu (-after Aug 1216).
HELENE de Ponthieu
Bronnen:
[750] Ponthieu I, p. 9.
[751] La Gorgue-Rosny (1877), Documents inédits, Autres chartes de Ponthieu, p. 37.
[752] Chronique de Robert de Torigny I, 1166, p. 360.
[753] Robert de Torigny, Vol. II, p. 28.
[754] La Gorgue-Rosny (1877), Documents inédits, Autres chartes de Ponthieu, p. 37.
[755] Domesday Descendants, p. 698, citing Salter, H. E. (ed.) (1929-36) The Oseney Cartulary (Oxford), Vol. V, p. 1037.
[756] Ponthieu VII, p. 16.
[757] La Gorgue-Rosny (1877), Documents inédits, Autres chartes de Ponthieu, p. 37.
https://fmg.ac/Projects/MedLands/nfraamp.htm#JeanIPonthieudied1191