List of 15 ancestors found in 40 iterations (15 distinct persons and 15 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Albert II de Namur (0997-15/12/1037)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Albert I de Namur (~0959-)
3Ermengarde de Basse-Lotharingie (0975-01/01/1012)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
4Robert de Namur (~0920-0981)
5Ermengarde de Lorraine (~0940-)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
8Béranger de Namur (~0880-0946)
9Symphoria de Hainaut (0880-0952)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
18Régnier Ier au Long Col de Hainaut (25/10/0860-19/01/0915)
19Albérade de Lorraine (0862-24/01/0919)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
38Charles II de France (13/06/0823-0877)
39Ermentrude d'Orléans (04/0825-0869)
Generation 6 - 2 person(s) on 64 (2 distinct persons)
76Louis Ier le Pieux de France (16/04/0778-20/06/0840)
77Judith de Bavière (0805-19/04/0843)
Generation 7 - 2 person(s) on 128 (2 distinct persons)
152Charlemagne de France (02/04/0747-28/01/0814)
153Hildegarde von Vintzgau (~0757-26/04/0783)