Duchy of Nassau [SEP] dissolved or abolished
Duchy of Nassau
The Duchy of Nassau (German: "Herzogtum Nassau") was an independent state between 1806 and 1866, located in what is now the German states of Rhineland-Palatinate and Hesse. It was a member of the Confederation of the Rhine and later of the German Confederation. Its ruling dynasty, now extinct, was the House of Nassau. The duchy was named for its historical core city, Nassau, although Wiesbaden rather than Nassau was its capital. In 1865, the Duchy of Nassau had 465,636
Region of Koblenz in the west and the Duchy of Nassau in the north.
This was the case for a hundred years, until Germany's defeat in the First World War, when the Grand Duchy of Hesse-Darmstadt was dissolved. Thereafter the region of Rhenish Hesse belonged to the People's State of Hesse, which existed until 1945.
After the Federal Republic of Germany was founded in the wake of the Second World War, Welgesheim belonged to the newly founded state of Rhineland-Palatinate ("Rheinland-Pfalz