John Charles, Count Palatine of Birkenfeld at Gelnhausen, was a German prince and ancestor of the cadet branch of the royal family of Bavaria known, from the early 19th century, as Dukes in Bavaria. He took Gelnhausen as the name of his branch of the family after acquiring that estate in 1669.
- Occupation
- military personnel, military officer
- Citizenship
- Germany
- Born
- October 17, 1638
- Died
- February 21, 1704
