The Duchy of Saxe-Coburg and Gotha was a German duchy located in the region of Thuringia. It was established in 1826 when the duchies of Saxe-Coburg and Saxe-Gotha were united under the rule of the House of Saxe-Coburg and Gotha. The duchy played a significant role in European history, particularly through its connections to various royal families. The ruling family, the House of Saxe-Coburg and Gotha, produced notable figures such as Prince Albert, the husband of Queen Victoria of the United Kingdom. The duchy was dissolved in 1918 following the end of the German monarchy after World War I, leading to the establishment of a republic in Germany.