List of 19 ancestors found in 40 iterations (19 distinct persons and 19 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)
12Octave de Domqueur (~0992-)
13Jehanne de Beaumetz (~1000-)
14Wallerand Ier d'Ailly (1003-1052)
15Mahaut de Gamaches (1011-1049)
Generation 4 - 6 person(s) on 16 (6 distinct persons)
Generation 5 - 4 person(s) on 32 (4 distinct persons)