List of 27 ancestors found in 40 iterations (27 distinct persons and 27 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Marguerite de Mortagne-du-Nord (~1418-)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Philippe de Mortagne-du-Nord (~1388-)
3Anne Witon (~1390-)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
4Roland de Mortagne-du-Nord (~1351-)
5Marguerite de Corbion (~1360-)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
8Alard Ier de Mortagne-du-Nord (~1328-1351)
9Catherine de Pottes (~1330-)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
16Robert de Mortagne-du-Nord (~1275-)
17Aleyde de Saint-Omer (1282-)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
34Baudouin III de Saint-Omer (~1242-)
35Alix de Crequy (~1250-)
Generation 6 - 2 person(s) on 64 (2 distinct persons)
70Hugues de Crequy (~1225-1296)
71Chrétienne de Selles (1238-1298)
Generation 7 - 2 person(s) on 128 (2 distinct persons)
140Philippe de Crequy (1195-1235)
141Alix de Picquigny (1202-1265)
Generation 8 - 2 person(s) on 256 (2 distinct persons)
282Enguerrand de Picquigny (~1168-11/1224)
283Marguerite de Ponthieu-Montgomery (~1180-)
Generation 9 - 2 person(s) on 512 (2 distinct persons)
564Guermond IV de Picquigny (~1144-1208)
565Flandrine d'Amiens (~1140-)
Generation 10 - 2 person(s) on 1024 (2 distinct persons)
1130Guy d'Amiens (1108-1147)
1131Mahaut de Boves (1110-)
Generation 11 - 2 person(s) on 2048 (2 distinct persons)
2262Thomas Ier de Boves (1065-09/11/1130)
2263Ermengarde de Montaigu (~1092-)
Generation 12 - 2 person(s) on 4096 (2 distinct persons)
4524Enguerrand Ier de Coucy (~1030-~1117)
4525Ade de Coucy (~1036-)
Generation 13 - 2 person(s) on 8192 (2 distinct persons)
9050Wallerand de Coucy (1010-1079)
9051Emma de Thourotte (1017-1074)