Pierre was the son of Eudes I de Vermandois and Pavie de Ham. The date and place of his birth have not been found.
Eudes I de Vermandois |
Herbert III de Meaux |
Adalbert I de Vermandois |
+ | |||||
Gerberge de Lorraine |
+ | |||||||
Ermengarde de Mâcon |
Albéric II de Coucy |
+ | ||||||
Ermentrude de Roucy |
+ | |||||||
Pavie de Ham |
Evrard II de Ham |
Lambert de Ham |
||||||
| ||||||||
Jehanne de Coucy |
Léopold de Coucy |
+ | ||||||
Berthilde de Marle |
+ |