List of 31 ancestors found in 40 iterations (29 distinct persons and 31 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Gilles de Grigny (~1078-1136)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Jehan de Grigny (~1051-1098)
3Louise de Cavron (~1059-1112)
Generation 2 - 4 person(s) on 4 (4 distinct persons)
4François Ier de Grigny (~1021-)
5Alberthe de Guisy (~1032-~1084)
6Wallerand II de Cavron (~1026-1075)
7Jeanne de Brimeu (~1031-1059)
Generation 3 - 8 person(s) on 8 (8 distinct persons)
8Alexandre de Grigny (~0982-1034)
9Marie de Rollencourt (~1004-1049)
10Léon de Guisy (~1015-)
11Guillemette de Plumoison (~1015-)
12Wallerand Ier de Cavron (~0997-1049)
13Adèle de Plumoison (~1008-1053)
14Hugues Ier de Brimeu (~1010-1042)
15Gertrude de Créquy (~1012-1044)
Generation 4 - 8 person(s) on 16 (8 distinct persons)
16Alphonse de Grigny (~0954-~1017)
17Richilde de Senlis en Artois (~0965-)
18Octave de Rollancourt (~0978-1034)
19Clémence de Fresnoy (~0985-1029)
20Arthur de Guisy (~0982-)
21Havoise de Fresnoy (~0994-)
30Renaud de Créquy (~0967-1029)
31Giselberthe de Crespy (~0986-1037)
Generation 5 - 6 person(s) on 32 (4 distinct persons)
38 (2)Alphonse de Fresnoy (~0950-~1009)
39 (2)Blanche de Beauvois (~0969-~1022)
42 (2)Alphonse de Fresnoy (~0950-~1009)
43 (2)Blanche de Beauvois (~0969-~1022)
60Arnold III de Créquy (~0946-~0967)
61Ade van Arkel (~0952-0967)
Generation 6 - 2 person(s) on 64 (2 distinct persons)
78Arthur de Beauvois (~0945-1002)
79Isabeau de Boubers (~0953-1004)