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

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Agnès de Willerval (1243-~1280)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Guilbert de Willerval (1204-1274)
3Aldegonde d'Ollehain (1218-1265)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
6Hugues d'Ollehain (1179-1233)
7Sybille de Gauchin Le Gal (~1190-~1223)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
12Guillaume d'Ollehain (1140-1197)
13Ursule de Colembert (1156-1199)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
26Arthur III de Colembert (1132-1197)
27Blandine de Therouanne (1138-1195)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
52Arthur II de Colembert (1088-1139)
53Henriette de Tingry (1107-1163)
Generation 6 - 2 person(s) on 64 (2 distinct persons)
104Arthur de Colembert (1056-1114)
105Hermance de Desvres (1065-1112)
Generation 7 - 2 person(s) on 128 (2 distinct persons)
208Hugues de Colembert (1025-1091)
209Blanche de Wissocq (1038-1099)
Generation 8 - 2 person(s) on 256 (2 distinct persons)
416Huon de Colembert (0995-1049)
417Amicie de Guines (1001-1059)
Generation 9 - 2 person(s) on 512 (2 distinct persons)
834Ardulf Ier le Posthume de Guînes (0966-)
835Mathilde de Boulogne (~0970-~1005)
Generation 10 - 2 person(s) on 1024 (2 distinct persons)
1668Siegfried Ier de Guines (~0905-0972)
1669Elftrude de Flandre (~0933-0972)
Generation 11 - 2 person(s) on 2048 (2 distinct persons)
3336Harald de Danemark (~0900-)
3337Gisèle de Lorraine (~0860-25/10/0907)
Generation 12 - 2 person(s) on 4096 (2 distinct persons)
6674Lothaire II de Germanie (~0835-12/08/0875)
6675Waldrade de Wormsgau (0815-08/04/0879)
Generation 13 - 2 person(s) on 8192 (2 distinct persons)
13348Lothaire Ier de Germanie (0795-29/09/0855)
13349Ermengarde de Tours (0804-20/05/0851)
Generation 14 - 2 person(s) on 16384 (2 distinct persons)
26696Louis Ier le Pieux de France (16/04/0778-20/06/0840)
26697Ermengarde de Hesbaye (0780-03/10/0818)
Generation 15 - 2 person(s) on 32768 (2 distinct persons)
53392Charlemagne de France (02/04/0747-28/01/0814)
53393Hildegarde von Vintzgau (~0757-26/04/0783)