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Rhineland-Palatinate is one of the 16 Bundesländer (federal states) of Germany. It has an area of 19,846 km² and about 4.048 million inhabitants. The capital is Mainz. The federal state of Rhineland-Palatinate was established on 30 August 1946.
Circle of the Rhine
The territory of the Rhine Circle, established in 1816, had been divided before 1792 into a total of 45 secular and ecclesiastical territories, some of which were very small. The largest were Electoral Palatinate, the Duchy of and the Prince-Bishopric of Speyer. Electoral Palatinate and Bavaria had had dynastic links through the family for centuries.