_John I NASSAU __________+ | (1340 - 1416) m 1357 _Englebert I NASSAU __________| | (1370 - 1442) | | |_Margareta of the Marck _ | (1409 - ....) m 1357 _John IV NASSAU __________| | (1410 - 1474) | | | _________________________ | | | | |_Johanna VAN POLANEN _________| | (1391 - 1445) | | |_________________________ | | |--Anna of NASSAU | (1441 - 1514) | _________________________ | | | _John II LOON ________________| | | | | | |_________________________ | | |_Maria of LOON-HEINSBERG _| (1426 - 1502) | | _________________________ | | |_Margaret OF SOLMS-BRAUNFELS _| | |_________________________