Clemence de Ponthieu
(1105 - 1189)
(b. 1105)
Parents
Helie of Burgundy
William III, Count of Ponthieu
Children
Juhel de Mayenne
Geoffroy III de Mayenne
Siblings
John I, Count of Alençon
Guy II of Ponthieu
Ela de Ponthieu
Pons
Partners
Juhel II de Mayenne