Johan Wilhelm Graeff (DeLaMarck) - Is Johan Wilhelm Graeff the father of Hermann Isaac op den Graeff or not?

Started by Private User on Monday, February 15, 2016
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  • Private User
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See the about section of the Master Profile for Johan WIllhelm:
"They had one child:

4 i. Herman (1585-1642)"

Duke Johann Wilhelm of Jülich-Cleves-Berg

This is in conflict with Wikipedia: https://en.wikipedia.org/wiki/John_William,_Duke_of_J%C3%BClich-Cle... Duke Johann William's childless death in 1609, his inheritance was claimed by the heirs of his two eldest sisters:

A collage Professor, Aivarss Lileika, I am in contact with, and he said he would check to see what records he could find. He has entry to the Urach family archive, he will be visiting for work, he said he will have I will look, and see what he can't find. Michael Greenfield

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