List of 13 ancestors found in 40 iterations (13 distinct persons and 13 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
Generation 2 - 4 person(s) on 4 (4 distinct persons)
4Gillis Devroede (1469-1517)
5Gertrud Ernault (1471-1501)
6Mathias Von Grasdorff (~1469-)
7Styne van Bessaten (~1471-1532)
Generation 3 - 4 person(s) on 8 (4 distinct persons)
Generation 4 - 2 person(s) on 16 (2 distinct persons)