Hesse-Nassau

Hesse-Nassau was a historical region in Germany, formed in 1868 from the territories of the Grand Duchy of Hesse and the Duchy of Nassau. It became part of the Kingdom of Prussia after the Austro-Prussian War in 1866, serving as a province within Prussia. The area included important cities like Wiesbaden and Mainz, and was known for its diverse landscapes, history, and cultural heritage. Hesse-Nassau existed until 1944, when administrative changes occurred during World War II, affecting its territorial borders and governance.