List of 13 ancestors found in 40 iterations (13 distinct persons and 13 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Jehan Ier de Lens (~1166-)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Eustache III Canivet du Roeulx (~1150-)
3Jeanne de Lens (~1150-)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
4Witasse dit le Barbe de Roeulx (~1124-1186)
5Berthe de Gavre (~1126-)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
10Rasse III de Gavre (~1100-27/06/1149)
11Julienne de Chièvres (1117-01/01/1180)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
20Rasse II de Gavre (1062-)
21Ide d'Ath (~1080-1138)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
42Gaultier d'Ath (1050-1122)
43Ade de Roucy (~1051-21/01/1119)
Generation 6 - 2 person(s) on 64 (2 distinct persons)
84Gossuin de Mons (0996-1076)
85Benoîte de Franconie (~1027-)