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)
1Jean de Landas (~1288-1316)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Andrieu de Landas (~1258-)
3Isabeau d'Ardres de Courteville d'Hodicq (1260-1318)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
6Hugues II d'Ardres (1226-1288)
7Blanche de Licques (1238-1289)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
14Philippe de Licques (~1200-)
15Marie d'Halluin (~1210-1271)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
28Guillaume de Licques (~1170-)
29Jeanne de Mailly (~1175-)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
58Nicolas de Mailly (~1140-)
59Amélie de Beaumont sur Oise (1144-1188)
Generation 6 - 2 person(s) on 64 (2 distinct persons)
118Mathieu II de Beaumont sur Oise (1114-1178)
119Mathilde de Châteaudun (~1125-26/06/1158)
Generation 7 - 2 person(s) on 128 (2 distinct persons)
238Geoffroi de Châteaudun (~1090-~1140)
239Havoise de Mondoubleau (~1090-~1153)
Generation 8 - 2 person(s) on 256 (2 distinct persons)
476Hugues III de Châteaudun (1056-1102)
477Agnès de Fréteval (1071-1111)
Generation 9 - 2 person(s) on 512 (2 distinct persons)
952Rotrou II de Châteaudun (1031-01/03/1080)
953Adelise de Bellême (1026-1094)
Generation 10 - 2 person(s) on 1024 (2 distinct persons)
1904Geoffroy d'Alençon (1012-1051)
1905Hildegarde de Mortagne (1011-1068)
Generation 11 - 2 person(s) on 2048 (2 distinct persons)
3810Foulques de Mortagne (0978-1035)
3811Berthe d'Avranches (0993-1049)
Generation 12 - 2 person(s) on 4096 (2 distinct persons)
7622Richard d'Avranches (0960-1026)
7623Arlette de Bayeux (0974-1022)