List of 15 ancestors found in 40 iterations (15 distinct persons and 15 positions into tree)

Generation 0 - 1 person(s) on 1 (1 distinct persons)
1Louis Messiaen (23/09/1835-31/05/1901)
Generation 1 - 2 person(s) on 2 (2 distinct persons)
2Gaspard Messiaen (1781-1838)
3Jeanne Bouhours (1800-1870)
Generation 2 - 2 person(s) on 4 (2 distinct persons)
4Jean Messiaen (~1738-)
5Marie Seynaeve (~1753-)
Generation 3 - 2 person(s) on 8 (2 distinct persons)
8Gaspard Messean (~1708-)
9Marie Spriet (~1710-)
Generation 4 - 2 person(s) on 16 (2 distinct persons)
16Audomar Messiaen (04/12/1670-25/07/1751)
17Marie Liagre (~1680-)
Generation 5 - 2 person(s) on 32 (2 distinct persons)
32Jean Messiaen (17/01/1638-10/12/1711)
33Antoinette Houzet (~1642-)
Generation 6 - 2 person(s) on 64 (2 distinct persons)
64Roland Messiaen (~1608-)
65Guillemette Lebrun (~1610-)
Generation 7 - 2 person(s) on 128 (2 distinct persons)
128Adrien Messiaen (~1578-)
129Marie Decottignies (~1580-)