List of 7 ancestors found in 30 iterations (7 distinct persons and 7 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Isabeau d'Hornoy (~1046-)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Gauthier III d'Hornoy (~1020-1065)
3BĂ©atrix d'Ailly (~1031-1081)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
6Wallerand Ier d'Ailly (1003-1052)
7Mahaut de Gamaches (1011-1049)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
12Huon d'Ailly (0968-1022)
13Giselberthe d'Aumale (~0973-)