List of 21 ancestors found in 40 iterations (21 distinct persons and 21 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Jeanne de Mailly (~1323-)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Jehan III de Mailly (~1275-1340)
3Jeanne de Picquigny (~1307-)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
6Jean de Picquigny (~1273-)
7Marthe d'Amiens (~1282-)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
12Jean de Picquigny (~1233-29/09/1304)
13Marguerite de Beaumetz (~1240-1303)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
24Gérard II de Picquigny (~1205-05/1248)
25Mahaut de Crésecques (~1218-)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
48Enguerrand de Picquigny (~1168-11/1224)
49Marguerite de Ponthieu-Montgomery (~1180-)
Generation 6 - 2 person(s) on 64 (2 distinct persons)
98Jean Ier de Ponthieu-Montgomery (~1142-30/06/1191)
99Béatrix de Saint Pol (~1147-)
Generation 7 - 2 person(s) on 128 (2 distinct persons)
196Guy II de Ponthieu-Montgomery (~1115-1147)
197Ida de Saint Pol (~1120-~1178)
Generation 8 - 2 person(s) on 256 (2 distinct persons)
392Guillaume II de Belleme-Montgomery (~1095-29/06/1171)
393Alix de Bourgogne (~1080-28/02/1141)
Generation 9 - 2 person(s) on 512 (2 distinct persons)
786Eudes de Bourgogne (1058-23/03/1103)
787Sybille de Bourgogne-Comté (~1065-23/03/1102)
Generation 10 - 2 person(s) on 1024 (2 distinct persons)
1572Henri Donzel ou Damoiseau de Bourgogne (1035-1066)
1573Sibylle de Barcelone (~1034-)