Guillaume 1er de PONTHIEUAge: 76 years10951171

Name
Guillaume 1er de PONTHIEU
Given names
Guillaume 1er
Surname
de PONTHIEU
Birth 1095 45 20

_FNA: NO
Death of a maternal grandfatherGuy de PONTHIEU
October 20, 1100 (Age 5 years)

_FNA: NO
MarriageHélie de BOURGOGNEView this family
about 1115 (Age 20 years)

_FNA: NO
Birth of a son
#1
Guy Ii de PONTHIEU
1115 (Age 20 years)

_FNA: NO
Birth of a daughter
#2
Hélie de MONTGOMMERY
1119 (Age 24 years)

_FNA: NO
Birth of a daughter
#3
Clémence de MONTGOMERY
1120 (Age 25 years)

_FNA: NO
Death of a motherAgnès de PONTHIEU
between 1103 and 1126 (Age 8 years)

_FNA: NO
Death of a fatherRobert Le Diable de MONTGOMERY
1131 (Age 36 years)

_FNA: NO
Death of a wifeHélie de BOURGOGNE
1141 (Age 46 years)

_FNA: NO
Death of a sonGuy Ii de PONTHIEU
1147 (Age 52 years)

_FNA: NO
Occupation
comte d'Alençon et de Ponthieu

_FIL
LEGITIMATE_CHILD

_USTHélie de BOURGOGNEView this family
MARRIED

Death July 6, 1171 (Age 76 years)

_FNA: NO
Family with parents - View this family
father
mother
Marriage: September 15, 1087
8 years
himself
Family with Hélie de BOURGOGNE - View this family
himself
wife
Marriage: about 1115
1 year
son
5 years
daughter
2 years
daughter
Bertrand de TOULOUSE + Hélie de BOURGOGNE - View this family
wife’s husband
wife
Marriage: June 1095
4 years
step-son

  1. Generation 1
    1. Guillaume 1er de PONTHIEU, comte d'Alençon et de Ponthieu, son of Robert Le Diable de MONTGOMERY and Agnès de PONTHIEU, was born in 1095 and died on July 6, 1171 at the age of 76. He married Hélie de BOURGOGNE, daughter of Eudes 1er de BOURGOGNE and Sibylle de BOURGOGNE, about 1115. She was born about 1080 and died in 1141.

      Children of Guillaume 1er de PONTHIEU and Hélie de BOURGOGNE:

      1. Guy Ii de PONTHIEU (11151147)
      2. Hélie de MONTGOMMERY (11191174)
      3. Clémence de MONTGOMERY (11201189)
  2. Generation 2back to top
    1. Guy Ii de PONTHIEU, son of Guillaume 1er de PONTHIEU and Hélie de BOURGOGNE, was born in 1115 and died in 1147 at the age of 32.

      Children of Guy Ii de PONTHIEU and Ida de SAINT-POL:

      1. Jean 1er de PONTHIEU (11421191)
    2. Hélie de MONTGOMMERY, daughter of Guillaume 1er de PONTHIEU and Hélie de BOURGOGNE, was born in 1119 and died in 1174 at the age of 55.

      Children of Hélie de MONTGOMMERY and William de WARENNE:

      1. Isabelle de WARENNE (11371199)
    3. Clémence de MONTGOMERY, daughter of Guillaume 1er de PONTHIEU and Hélie de BOURGOGNE, was born in 1120 and died in 1189 at the age of 69.

      Children of Clémence de MONTGOMERY and Juhel 1er de MAYENNE:

      1. Geoffroi Iv de MAYENNE (11471170)
  3. Generation 3back to top
    1. Jean 1er de PONTHIEU, son of Guy Ii de PONTHIEU and Ida de SAINT-POL, was born in 1142 and died in 1191 at the age of 49. He married Béatrice de SAINT-POL, daughter of Anselme Ier de SAINT-POL and Eustachie de CHAMPAGNE, in 1177. She was born in 1155 and died about 1190.

      Children of Jean 1er de PONTHIEU and Béatrice de SAINT-POL:

      1. Guillaume Iii de PONTHIEU (11771221)
      2. Marguerite de PONTHIEU
      3. Adèle de PONTHIEU
    2. Isabelle de WARENNE, daughter of William de WARENNE and Hélie de MONTGOMMERY, was born in 1137 and died in 1199 at the age of 62. She married 2 times. The first time she married Hamelin PLANTAGENÊT, son of Geoffroy V PLANTAGENÊT, in 1164. He was born in 1130 and died in 1202 at the age of 72. The second time she married Guillaume de BLOIS, son of Etienne de BLOIS and Mathilde de BOULOGNE, in 1149. He was born in 1134 and died in 1159 at the age of 25.

      Children of Isabelle de WARENNE and Hamelin PLANTAGENÊT:

      1. Guillaume PLANTAGENÊT (11751240)
    3. Geoffroi Iv de MAYENNE, son of Juhel 1er de MAYENNE and Clémence de MONTGOMERY, was born in 1147 and died in 1170 at the age of 23. He married Isabelle de BEAUMONT, daughter of Galerand Iv de BEAUMONT and Agnès de MONTFORT, in 1168. She was born in 1147 and died in 1220 at the age of 73.

      Children of Geoffroi Iv de MAYENNE and Isabelle de BEAUMONT:

      1. Juhel Ii de MAYENNE (11681220)
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