The Duke of Hohenberg was a title held by members of the noble family of Hohenberg, which originated in the region of Swabia in Germany. The title is often associated with the House of Hohenberg, which played a significant role in the history of the Holy Roman Empire during the medieval period. The most notable figure associated with this title is Franz Ferdinand, Archduke of Austria, who was the last Duke of Hohenberg. His assassination in 1914 in Sarajevo sparked the beginning of World War I, leading to significant political changes in Europe.