List of 15 ancestors found in 40 iterations (13 distinct persons and 15 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)
Generation 3 - 4 person(s) on 8 (4 distinct persons)
12Gilduin le Danois de Saumur (~0920-)
13Adèle de Montreuil (0900-)
14Renaud II le Thuringien de Doué (0928-)
15Richilde de Montrevault (~0940-)
Generation 4 - 4 person(s) on 16 (4 distinct persons)