List of 11 ancestors found in 40 iterations (11 distinct persons and 11 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Mainfroy de Lens (~1100-~1150)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Hugues Ier de Lens (~1065-1135)
3Alix de Rebecque (~1070-)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
4Gauthier Ier de Lens (~1035-)
5Adélaïde de Rebecque (~1037-)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
8Robert II de Bethune (1010-1071)
9Berthilde d'Ollehain (1019-1073)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
18Wauthier III d'Ollehain (~0987-1039)
19Gisèle de Hainaut (~0998-1049)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
36Wauthier II d'Olhain (~0953-1013)
37Blanche d'Hersin (~0964-1003)