List of 15 ancestors found in 40 iterations (15 distinct persons and 15 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Jean III de Peteghem Cysoing (1190-1240)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Jean II de Peteghem Cysoing (~1154-)
3Mabilia de Guînes (1165-)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
4Jean Ier de Peteghem (1095-1154)
5Petronille d'Avesnes sur Helpe (1125-1206)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
10Wautier Ier d'Oisy (1100-1147)
11Ide de Mortagne-du-Nord (1095-)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
22Evrard de Tournai (1055-1129)
23Helvide de Conteville (1065-1099)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
46Robert de Conteville de Mortain (14/12/1031-14/12/1090)
47Mathilde de Montgommery (1039-1107)
Generation 6 - 2 person(s) on 64 (2 distinct persons)
94Roger II de Montgommery (~1030-27/09/1094)
95Mabille de Bellême (~1025-1079)
Generation 7 - 2 person(s) on 128 (2 distinct persons)
190Guillaume II de Bellême (~0995-~1052)
191Hildeburge de Beaumont-au-Maine (1000-08/12/1042)