List of 19 ancestors found in 40 iterations (19 distinct persons and 19 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Jean de Crésecques (~1255-)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Robert IV de Crésecques (~1220-1270)
3Jeanne de Picquigny (~1224-1279)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
6Gérard II de Picquigny (~1205-05/1248)
7Laure de Montfort-Regnier (~1205-1227)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
12Enguerrand de Picquigny (~1168-11/1224)
13Marguerite de Ponthieu-Montgomery (~1180-)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
24Guermond IV de Picquigny (~1144-1208)
25Flandrine d'Amiens (~1140-)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
50Guy d'Amiens (1108-1147)
51Mahaut de Boves (1110-)
Generation 6 - 2 person(s) on 64 (2 distinct persons)
100Adam d'Amiens (1072-1136)
101Jeanne du Perche-Chateaudun (1078-1118)
Generation 7 - 2 person(s) on 128 (2 distinct persons)
202Geoffroy du Perche (1056-10/10/1100)
203Beatrix de Montdidier (1051-1129)
Generation 8 - 2 person(s) on 256 (2 distinct persons)
404Rotrou II de Châteaudun (1031-01/03/1080)
405Adelise de Bellême (1026-1094)
Generation 9 - 2 person(s) on 512 (2 distinct persons)
808Geoffroy d'Alençon (1012-1051)
809Hildegarde de Mortagne (1011-1068)