Guillaume I "Talvas" (-30 June 1171), Comte de Ponthieu

Same as
Additional names
Parents
Father:1Robert de Montgommery (between 1052 and 1056-8 May probably 1131 or later), Comte de Ponthieu
Mother:2Agnes de Ponthieu (-after 6 October 1100)
Spouses and relationship events
Married:3between late 1112 and 1115Helie de Bourgogne (around 1080/83-28 February 1141)
Children
Children with Helie de Bourgogne:
Ela de Ponthieu (-10 December 1174)4
Jean I (-24 February 1191), Comte d'Alençon5
Clemence de Ponthieu (-30 November before 1189)6
Mabile de Ponthieu (-)7
Philippa de Ponthieu (-before 1149)8
Guy II (-1147), Comte de Ponthieu9
Guillaume de Ponthieu (-after 1166), Comte d'Alençon10
Robert de Ponthieu (-)11
Robert de Garennes (-1171 or later), monk12
Guillaume de Ponthieu (-)13
Enguerrand de Ponthieu (-)14
Enguerrand de Ponthieu (-)15
Attributes
Occupation:16Comte de Ponthieu
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