Hochburg

The Hochburg is a castle ruin situated between the city of Emmendingen and the village of Sexau in the region of Baden, located in the southwest of Germany. It was presumably built in the 11th century and was originally known as castle Hachberg. The line of nobles known as the Margraves of Baden-Hachberg most likely derive their name from this castle and before it was razed by the French it was the second largest fortification in Baden.

Source: Wikipedia