County of Leiningen
The County of Leiningen was a territory comprising a group of counties—some of which held Imperial immediacy—that were ruled by the Leiningen family.
Most of these counties were annexed by the First French Republic in 1793, following the conquest of the left bank of the Rhine by French troops during the War of the First Coalition. Several branches of the family subsequently received secularized abbeys as compensation; however, shortly thereafter, these newly established counties were mediatized, and the family lost its immediacy. Today, the only extant branch is that of the Princes of Leiningen.