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)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
6Roger II de Lille (1076-~1130)
7? de Phalempin (~1097-)
Generation 3 - 2 person(s) on 8 (2 distinct persons)