Question: What nationality is Countess Palatine Maria Anna Of Zweibrücken-Birkenfeld's husband?
Sentence (from "Duke Wilhelm in Bavaria"): (born 10 November 1752 in Gelnhausen, Palatinate-Birkenfeld-Gelnhausen; died 8 January 1837 in Landshut or Bamberg, Kingdom of Bavaria) was Count Palatine of Birkenfeld-Gelnhausen between 1789 and 1799 and first Duke in Bavaria from 16 February 1799 until his death in 1837.
Relevant evidence: No