List of 5 ancestors found in 40 iterations (5 distinct persons and 5 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Guillaume de Beauvoir (~1160-)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Guillaume de Beauvoir (~1140-)
3Marie ? (~1140-)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
4Siboud de Beauvoir (~1120-)
5Pétronille ? (~1120-)