List of 21 ancestors found in 40 iterations (21 distinct persons and 21 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Wautier Ier d'Oisy (1100-1147)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Fastre II d'Oisy (1074-1119)
3Richilde d'Avesnes-sur-Helpe (1078-1132)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
6Thierry Ier d'Avesnes-sur-Helpe (1049-1106)
7Ade de Roucy (~1051-21/01/1119)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
14Hilduin IV de Montdidier (0995-1063)
15Alix de Roucy (~1020-1062)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
28Hilduin III De Montdidier (~0970-1037)
29Lesceline d'Harcourt (0975-26/01/0998)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
56Hilduin II de Montdidier (~0951-0992)
57Helvide de Laon (~0940-)
Generation 6 - 2 person(s) on 64 (2 distinct persons)
114Roger II de Laon (0902-0967)
115Gertrude de Chaumontois (~0920-)
Generation 7 - 2 person(s) on 128 (2 distinct persons)
228Roger de Laon (~0867-0926)
229Helvide de Frioul (0848-~0915)
Generation 8 - 2 person(s) on 256 (2 distinct persons)
458Saint Evrard de Frioul (0812-16/12/0866)
459Gisèle de Francie (04/0821-01/07/0874)
Generation 9 - 2 person(s) on 512 (2 distinct persons)
918Louis Ier le Pieux de France (16/04/0778-20/06/0840)
919Judith de Bavière (0805-19/04/0843)
Generation 10 - 2 person(s) on 1024 (2 distinct persons)
1836Charlemagne de France (02/04/0747-28/01/0814)
1837Hildegarde von Vintzgau (~0757-26/04/0783)