List of 25 ancestors found in 40 iterations (25 distinct persons and 25 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Giselbert II de Haverskerque (1232-1253)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Gilbertus de Haverskerque (1181-1248)
3Nathalie de La Viefville (1216-1282)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
6Pierre II de La Viefville Magret (1189-)
7Nathalie d'Aire (1200-1255)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
14Philippe d'Aire (1170-~1230)
15Beatrix de Saint Omer (1180-24/04/1254)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
30Guillaume IV de Saint Omer (1150-1189)
31Ide d'Avesnes (~1150-01/01/1210)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
62Nicolas d'Oisy (1120-1171)
63Mathilde de Namur (1097-10/09/1169)
Generation 6 - 2 person(s) on 64 (2 distinct persons)
126Godefroy Ier de Namur (1066-19/08/1139)
127Mathilde de Limbourg (1085-01/01/1141)
Generation 7 - 2 person(s) on 128 (2 distinct persons)
252Albert III de Namur (1027-06/07/1102)
253Ida de Saxe Billung (~1035-14/08/1102)
Generation 8 - 2 person(s) on 256 (2 distinct persons)
504Albert II de Namur (0997-15/12/1037)
505Réginlinde de Haute-Lorraine (1005-1067)
Generation 9 - 2 person(s) on 512 (2 distinct persons)
1010Gozelon I de Lorraine (~0970-25/04/1044)
1011Urraca d'Italie (~0948-1007)
Generation 10 - 2 person(s) on 1024 (2 distinct persons)
2022Béranger II d'Italie (~0901-16/07/0966)
2023Willa III d'Arles (0916-0966)
Generation 11 - 2 person(s) on 2048 (2 distinct persons)
4044Adalbert Ier d'Italie (0880-0923)
4045Gisela de Frioul (0883-13/06/0910)
Generation 12 - 2 person(s) on 4096 (2 distinct persons)
8088Boniface III de Toscane (0852-0904)
8089Volsia de Suze (~0860-)