List of 5 ancestors found in 40 iterations (5 distinct persons and 5 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Sarah de Lille (1125-1162)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Roger II de Lille (1076-~1130)
3? de Phalempin (~1097-)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
4Roger Ier de Lille (~1050-23/06/1098)
5Ogive de Flandres (~1055-)