He is married to Maria Anna Freiin von Dalberg.
They got married
Child(ren):
A 12, 451
Ahnenprobe des Friedrich Anton (Bruder Friedrich Joseph Anton, Nr. 449) v. Venningen. - ausgefertigt 1804 August 27, Pergament
http://www.archivesportaleurope.net/ead-display/-/ead/pl/aicode/DE-2556/type/fa/id/b12#
https://digitalisate-he.arcinsys.de/hstad/a_12/451/a_12%23451.jpg
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