List of 17 ancestors found in 30 iterations (15 distinct persons and 17 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 - 4 person(s) on 4 (4 distinct persons)
4 (2)Nocher Ier de Chelers (~1009-)
5 (2)Guislaine de Servins (~1022-1074)
6Robert de Tincques (1024-1077)
7Berthilde de Chelers (1040-1089)
Generation 3 - 6 person(s) on 8 (6 distinct persons)
Generation 4 - 4 person(s) on 16 (6 distinct persons)