Baudouin was the son of Robert IV de Béthune and Adélaïde de Péronne. The date and place of his birth have not been found.
|
Robert IV de Béthune |
Robert III de Béthune |
Robert de Béthune |
||||||
| | ||||||||
| | | |||||||
| | ||||||||
|
Adélaïde de Péronne |
Robert II de Péronne |
Robert I de Péronne |
+ | |||||
|
Adelise de Saint-Quentin |
+ | |||||||
| | | |||||||
| |