He is married to Louise Charlotte Churfürstin von Brandenburg.
They got married on October 9, 1645 at Koningsbergen, he was 34 years old.
Child(ren):
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Geschichte der Kölnischen, Jülichschen und Bergischen Geschlechter in Stammtafeln, Wappen, Siegeln und Urkunden
by Anton Fahne
Publication date 1848
https://archive.org/details/bub_gb_19VDAAAAcAAJ/page/n238/mode/1up
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The data shown has no sources.