List of 17 ancestors found in 40 iterations (17 distinct persons and 17 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Blanche d'Ollehain (~1043-1097)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Gaucher d'Ollehain (~1015-1072)
3Jeanne de Bours (~1022-1071)
Generation 2 - 4 person(s) on 4 (4 distinct persons)
4Wauthier III d'Ollehain (~0987-1039)
5Gisèle de Hainaut (~0998-1049)
6Jehan de Bours (0995-1047)
7Alix de Saint Pol (~1002-1054)
Generation 3 - 6 person(s) on 8 (6 distinct persons)
8Wauthier II d'Olhain (~0953-1013)
9Blanche d'Hersin (~0964-1003)
12Eustache de Bours (0970-1017)
13Richilde de Wignacourt (~0973-)
14Hughes III de Boulogne dit de Saint Pol (~0978-1028)
15Aldegonde de Saint Pol (~0978-1032)
Generation 4 - 4 person(s) on 16 (4 distinct persons)
26Ithier de Wignacourt (0957-)
27Noelle de Dammartin (~0945-)
28Guy Ier Barbe Blanche de Boulogne (~0953-0987)
29Adeline de Desvres (~0964-)