Jan Pipenpoy
Jan was born about 1418.  He died in 1464.

 Margarite Van De Voorde
Margarite Van De was born about 1420.  She died in 1444.

 Guillaume Pipenpoy-Bossuyt
Guillaume was born about 1438.  He died on September 15th, 1483 in St. Martens, Lennik.