List of 13 ancestors found in 40 iterations (13 distinct persons and 13 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)
Generation 3 - 4 person(s) on 8 (4 distinct persons)
12Grimoald de Boisleux (1000-)
13Lydie ? (1008-)
14Gauthier de Boiries (1005-)
15Margotte ? (1010-)
Generation 4 - 4 person(s) on 16 (4 distinct persons)