Rhineland (Rheinland): Region along the Middle and Lower Rhine

One can only speak of the Rhineland as a comprehensive designation for the areas on the Middle and Lower Rhine with a uniform political and social structure from 1797 onwards with the state integration of the left bank of the Rhine into revolutionary France. The unification of all the French-occupied lands on the left bank of the Rhine, from the Electoral Palatinate to the Duchy of Cleves, which was first temporarily planned as the Cisrhenian Republic, was not carried out. Instead, the entire left territory from the Electoral Palatinate onwards was annexed by France. The four new French departments formed in the process were Roer, Rhine-Moselle, Saar and Donnersberg.

Before that, this area was essentially divided between various duchies and the Catholic "territorial areas" of the three electorates of Cologne, Mainz and Trier, in which the archbishops also held secular power as electors. In addition, there were various counties, smaller enclaves, dominions, abbeys and the two large and ancient imperial cities of Aachen and Cologne in this entire area. The inhabitants of the various duchies, counties, archbishoprics and free imperial cities were therefore also not called Rhinelanders until 1797 and for many centuries, but Berger, Geldener, Jülicher, Klever, Kölner and Kurkölner and so on. All these territories had their own authorities with a wide variety of laws and regulations and a legally privileged upper class, the members of the nobility. Even the geographical term "Rhineland" was not applied until the end of the 18th century, accordingly the inhabitants of these territories could not be "Rhinelanders".

After the Congress of Vienna in 1815, the territories lying on the left bank of the Rhine were divided between Prussia, Hesse and Bavaria. Bavaria called its territory on the left bank of the Rhine, which largely corresponded to the former Electoral Palatinate with the territories of the Palatine collateral lines of the Wittelsbach dynasty, Rheinkreis (later Pfalz or Rhine Palatinate), while the Grand Duchy of Hesse called its left bank province Rheinhessen. The Prussian territories comprised most of the formerly French-annexed left bank of the Rhine, to which was added, on the right bank, essentially the territory of the Grand Duchy of Berg bequeathed by Napoleon Bonaparte. The modern legal and communal order introduced by France was largely adopted in these areas. The Napoleonic Code civil as a civil legal order continued to exist in all territories on the left bank of the Rhine until the entry into force of the Civil Code on 1 January 1900.

The entire Prussian territories were initially combined into two provinces, the Grand Duchy of the Lower Rhine and the Province of Jülich-Kleve-Berg, and then united into a single Rhine Province from 1822. The province consisted of the administrative districts of Aachen, Düsseldorf, Cologne, Coblenz and Trier. Especially for this province the name Rhineland became established, also in its Latinized form Rhenania. Since before the 19th century only the northern areas up to about the mouth of the Ruhr had belonged to Prussia until the unification into the Rhine province, and the new acquisitions were also predominantly Catholic, there was also resistance among Protestant Prussians against integration into the new rule. Separatist counter-movements formed, which one also wanted to undermine by the historicizing term Rhineland with the formation of research institutions for the regional-historical common history of the Rhineland. These separatist tendencies, which still led to the attempt to form a Rhenish Republic in 1923, could not prevail in the end.

After the First World War, the term Rhineland temporarily acquired a new level of meaning as a result of the Allied occupation of the Rhineland in 1918/19. When people spoke of the occupied Rhineland, they meant not only the whole of Germany on the left bank of the Rhine, but also the "bridgeheads" (30-km zone) around Cologne, Koblenz and Mainz that were occupied on the right bank of the Rhine.

The Rhineland in this sense is distributed among Hesse, North Rhine-Westphalia, Rhineland-Palatinate and Saarland in the German post-war order as a result of the occupation zones established by the Allies after World War II. New territorial divisions divided the Rhineland into the Lower Rhine of North Rhine-Westphalia and the Middle Rhine of Rhineland-Palatinate; only a small part of the northern Middle Rhine is now also part of the state of North Rhine-Westphalia. Rhineland-Palatinate includes the greater part of the areas on the Middle Rhine, including the areas on the right bank of the Rhine below the height of Bonn to the Rheingau-Taunus district, as well as Rhinehesse and the former Bavarian Rhine Palatinate, while Hesse no longer has any territory on the left bank of the Rhine. A special status, as already temporarily after the First World War, had briefly until 1 January 1957 the Saarland.

In a narrower sense, one now often refers only to the North Rhine-Westphalian part when speaking of the Rhineland; thus one often speaks of the Rhineland Regional Association as an abbreviation. For the Evangelical Church in the Rhineland, the original extent of the church province, which is congruent with the territorial status of the Prussian Rhine Province, has not changed over all historical upheavals.

Although the term Rhineland cannot be precisely defined in geoscientific terms, it has been used almost uniformly in linguistic usage since the post-war order:

The Rhineland part of North Rhine-Westphalia borders the Netherlands to the north and west, Belgium to the southwest and Westphalia to the east. The part of Rhineland-Palatinate borders on Belgium and Luxembourg in the west, on Saarland (formerly also part of the Rhineland) in the southwest and on the North Palatinate mountains and Rhine-Hessian Switzerland in the south. To the east it borders on Hesse, to the northeast on Westphalia. The highest elevation of the North Rhine-Westphalian part of the state is the mountain Weißer Stein with 689 m, located in the Eifel. The Erbeskopf in the Hunsrück is with 816 m the highest elevation of the Rhineland-Palatinate part and thus of the Rhineland as a whole and also the highest German mountain left of the Rhine, which flows through the country from southeast to northwest. Between Bingen and Bonn it cuts through the Rhenish Slate Mountains. The low mountain range bordering the North German Plain runs east of the Rhine along the lower reaches of the Ruhr, then south roughly on the line Mülheim an der Ruhr-Solingen-Bergisch Gladbach-Bonn, then west to northwest in an arc via Düren to Aachen.

The theory put forward here, that Rheinhessen with Mainz is to be counted as part of the Rhineland, is opposed by authoritative regional institutions that do not see it that way at all. Nowhere in these essays is a reference to the Rhineland to be found.