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)
1Roger De Sers (~1475-)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Jourdain De Sers (~1455-)
3Jaquette De Galaubat (~1447-)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
4Georges De Sers (~1435-)
5Jeanne De Gazalets (~1427-)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
8Bruno De Sers (~1405-)
9Marie De Rabonito (~1407-)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
16Jean II De Sers (~1345-)
17Jacquette De Villemur (~1345-)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
32Jean De Sers (~1310-)
33Jeanne De Martres (~1310-)
Generation 6 - 2 person(s) on 64 (2 distinct persons)
64Pierre De Sers (~1290-)
65Maude De Galaubat (~1282-)
Generation 7 - 2 person(s) on 128 (2 distinct persons)
128Dominique De Sers (~1265-)
129Jeanne De Mauléon (~1265-)