List of 3 ancestors found in 40 iterations (3 distinct persons and 3 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Léon Ier de Bruxelles (1199-1253)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Godefroid d'Aa de Seneffe (~1169-)
3Mathilde de l'Alleu de Neyghem (1152-1219)