Rhineland-Palatinate
The state of Rhineland-Palatinate was founded shortly after the Second World War on 30 August 1946. It was formed mainly from the southern part of the Prussian Rhine Province (the "Regierungsbezirke" of Koblenz and Trier), from Rhenish Hesse, from the western part of Nassau and the Bavarian Rhenish Palatinate minus the county of Saarpfalz. The Joint German-Luxembourg Sovereign Region ("Gemeinschaftliches deutsch-luxemburgisches Hoheitsgebiet") is the only unincorporated area of the state of Rhineland-Palatinate. This condominium is formed by the rivers Moselle, Sauer, and Our, where they run along the border between Luxembourg and Rhineland-Palatinate or the Saarland.
Mainz
From 1945 to 1949, the city was part of the French zone of occupation. When the federal state of Rhineland-Palatinate was founded on 30 August 1946 by the commander of the French army on the French occupation zone Marie Pierre Kœnig, Mainz became capital of the new state. In 1962, the diarist, Friedrich Kellner, returned to spend his last years in Mainz. His life in Mainz, and the impact of his writings, is the subject of the Canadian documentary "".