List of 19 ancestors found in 40 iterations (17 distinct persons and 19 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Jehan de Grigny (~1051-1098)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2François Ier de Grigny (~1021-)
3Alberthe de Guisy (~1032-~1084)
Generation 2 - 4 person(s) on 4 (4 distinct persons)
4Alexandre de Grigny (~0982-1034)
5Marie de Rollencourt (~1004-1049)
6Léon de Guisy (~1015-)
7Guillemette de Plumoison (~1015-)
Generation 3 - 6 person(s) on 8 (6 distinct persons)
8Alphonse de Grigny (~0954-~1017)
9Richilde de Senlis en Artois (~0965-)
10Octave de Rollancourt (~0978-1034)
11Clémence de Fresnoy (~0985-1029)
12Arthur de Guisy (~0982-)
13Havoise de Fresnoy (~0994-)
Generation 4 - 4 person(s) on 16 (2 distinct persons)
22 (2)Alphonse de Fresnoy (~0950-~1009)
23 (2)Blanche de Beauvois (~0969-~1022)
26 (2)Alphonse de Fresnoy (~0950-~1009)
27 (2)Blanche de Beauvois (~0969-~1022)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
46Arthur de Beauvois (~0945-1002)
47Isabeau de Boubers (~0953-1004)