List of 25 ancestors found in 40 iterations (25 distinct persons and 25 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Alard Ier de Mortagne-du-Nord (~1328-1351)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Robert de Mortagne-du-Nord (~1275-)
3Aleyde de Saint-Omer (1282-)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
6Baudouin III de Saint-Omer (~1242-)
7Alix de Crequy (~1250-)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
14Hugues de Crequy (~1225-1296)
15Chrétienne de Selles (1238-1298)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
30François Ier de Selles (1195-1251)
31Henriette de Therouanne (1206-1261)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
62François II de Thérouanne (1177-1238)
63Blandine de Berghes (1189-1244)
Generation 6 - 2 person(s) on 64 (2 distinct persons)
126Evrard de Berghes (1158-1211)
127Gisèle d'Ardres (1168-1214)
Generation 7 - 2 person(s) on 128 (2 distinct persons)
252Guy II de Berghes (1133-1188)
253Adèle II de Selvesse (1140-)
Generation 8 - 2 person(s) on 256 (2 distinct persons)
504Gilbert de Berghes Saint Winoch (1115-1188)
505Emma de Lillers (1116-1137)
Generation 9 - 2 person(s) on 512 (2 distinct persons)
1008Foulques de Berghes Saint Winoch (1080-1147)
1009Adèle de Guines (1098-1144)
Generation 10 - 2 person(s) on 1024 (2 distinct persons)
2018Foulques de Guines (1070-1126)
2019Eléonore d'Aire (1079-1136)
Generation 11 - 2 person(s) on 2048 (2 distinct persons)
4038Rollon d'Aire (1050-1111)
4039Avicie de Choques (1059-1108)
Generation 12 - 2 person(s) on 4096 (2 distinct persons)
8078Geoffroy II de Choques (1022-1079)
8079Bertrande de Thérouanne (1034-1087)