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)
1Baldwin d'Altena (1156-24/11/1200)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Thierry II d'Altena (~1120-~1189)
3Mathilde de Gand (~1130-)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
4Dietrich d'Altena (~1105-1172)
5Adèle Berthout (~1090-)