House of Leiningen
After the French Revolution, the Left Bank of the Rhine was conquered during the War of the First Coalition and annexed by France in 1793. The two counts of Alt- and Neu- Leiningen were arrested and jailed in Paris. They lost their territories. In 1803 they were compensated with secularized Ilbenstadt Abbey (at Niddatal) and Engelthal Abbey. The German mediatization brought an end to these short-lived counties in 1806, when their territories were divided between the Grand Duchy of Berg, the Grand Duchy of Hesse, Nassau-Weilburg and Nassau-Usingen. Ilbenstadt Abbey was sold by the House of Leiningen-Westerburg-Altleiningen in 1921, Engelthal Abbey by the heirs of the House of Leiningen-Westerburg-Neuleiningen in 1952.