Rhineland-Palatinate
On 10 July 1945 the occupation authority on the soil of the present-day Rhineland-Palatinate transferred from the Americans to the French. To begin with, the French divided the region provisionally into two "upper presidiums" ("Oberpräsidien"), Rhineland-Hesse-Nassau (for the hitherto Prussian government districts and regions of Koblenz, Trier, and Montabaur) and Hesse-Palatinate (for the hitherto Bavarian Palatinate and old Hessian-Darmstadt province of Rhenish Hesse). The formation of the state was ordained on 30 August 1946, the last state in the Western Zone of Occupation to be established, by Regulation No. 57 of the French military government under General Marie-Pierre Kœnig. It was initially called Rhenish-Palatinate ("Rheinpfälzisches Land" or "Land Rheinpfalz"); the name Rhineland-Palatinate ("Rheinland-Pfalz") was first confirmed in the constitution of 18 May 1947.
Rhineland
A "Rhineland" conceptualization did not evolve until the 19th century after the War of the First Coalition, when a short-lived Cisrhenian Republic was established on territory conquered by French troops. The term covered the whole occupied zone west of the Rhine (German: ') including the bridgeheads on the eastern banks. After the collapse of the French dominated West Bank in the early 19th century, the regions of Lower Rhine and Jülich-Cleves-Berg were annexed to the Kingdom of Prussia. In 1822 the Prussian administration reorganized the territory as the Rhine Province (also known as Rhenish Prussia), a term continuing in the names of the German states of Rhineland-Palatinate and North Rhine-Westphalia.