Christian of the Palatinate-Zweibrücken (1752–1817)

The children were unable to succeed to their father's Duchy due to the morganatic nature of their parents' marriage at first, but were allowed to wear the name Freiherr von Zweibrücken in 1792.

[5] Due to a former business agreement from March 1751 between Louis XV of France and his father, who promised to the French king to raise a battalion of infantry for France when and if needed,[7] the Infantry Regiment "Royal Deux-Ponts" (raised on 19, 1757) of two battalions to the French crown after the outbreak of the Seven Years' War, when it was at first deployed in the Battle of Rossbach.

[9] Because of the French Revolution, he left the French forces in the rank of a Colonel, meanwhile titled Freiherr von Zweibrücken, and was taken over by the Prussian Army in the rank of a Major General, where he took part in the campaigns against France during 1794 and 1797.

In the end of the century he was taken over on his request by the Bavarian Army, where he became Lieutenant General and provincial commander of the Palatinate region.

In 1808 he became Geheimer Rat (German: Privy Councilor), and in January 1811 he was promoted to the rank of General der Infanterie.