List of 3 ancestors found in 30 iterations (3 distinct persons and 3 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Guillaume Ier des Barres (~1110-1161)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Jean Ier des Barres (~1095-1161)
3Elisabeth de Meursault (~1082-)