List of 7 ancestors found in 40 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)
6Renier d'Udekem d'Acoz (~1170-05/12/1250)
7Laure de Perwez (1193-08/11/1254)
Generation 3 - 2 person(s) on 8 (2 distinct persons)