List of 15 ancestors found in 40 iterations (15 distinct persons and 15 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)
Generation 3 - 4 person(s) on 8 (4 distinct persons)
12Octave de Rollancourt (~0978-1034)
13Clémence de Fresnoy (~0985-1029)
14Victor de Beauvois (~0973-)
15Ghislaine de Blangy (~0989-)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
Generation 5 - 2 person(s) on 32 (2 distinct persons)