List of 27 ancestors found in 40 iterations (27 distinct persons and 27 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Blanche de Bours (~1125-)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Louis de Bours (~1100-~1154)
3Jeanne de Rollancourt (~1105-~1159)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
4Robert de Bours (1079-1124)
5Berthe de Bournonville (1083-1132)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
8Hugues de Bours (1056-1108)
9Marthe de Ponthieu (1062-1109)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
16François de Bours (~1024-~1069)
17Gisèle De Guines (~1034-~1089)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
34Eustache Ier de Guînes (~1016-~1065)
35Suzanne de Ghermines (~1010-~1046)
Generation 6 - 2 person(s) on 64 (2 distinct persons)
68Rodolphe Ier de Guînes (~0990-30/05/1036)
69Rosèle de Saint Pol (~0986-)
Generation 7 - 2 person(s) on 128 (2 distinct persons)
136Ardulf Ier le Posthume de Guînes (0966-)
137Mathilde de Boulogne (~0970-~1005)
Generation 8 - 2 person(s) on 256 (2 distinct persons)
272Siegfried Ier de Guines (~0905-0972)
273Elftrude de Flandre (~0933-0972)
Generation 9 - 2 person(s) on 512 (2 distinct persons)
544Harald de Danemark (~0900-)
545Gisèle de Lorraine (~0860-25/10/0907)
Generation 10 - 2 person(s) on 1024 (2 distinct persons)
1090Lothaire II de Germanie (~0835-12/08/0875)
1091Waldrade de Wormsgau (0815-08/04/0879)
Generation 11 - 2 person(s) on 2048 (2 distinct persons)
2180Lothaire Ier de Germanie (0795-29/09/0855)
2181Ermengarde de Tours (0804-20/05/0851)
Generation 12 - 2 person(s) on 4096 (2 distinct persons)
4360Louis Ier le Pieux de France (16/04/0778-20/06/0840)
4361Ermengarde de Hesbaye (0780-03/10/0818)
Generation 13 - 2 person(s) on 8192 (2 distinct persons)
8720Charlemagne de France (02/04/0747-28/01/0814)
8721Hildegarde von Vintzgau (~0757-26/04/0783)