archduke
n. countablen. a title for a member of a royal family in some European countries, especially Austria. It is a very high rank, just below the emperor or king.
n. a title of nobility used in the Habsburg monarchy and other European dynasties, typically ranking above a prince and below an emperor. Historically associated with the Austrian Empire and the Holy Roman Empire.
The archduke traveled through the city to meet the king.
In the late nineteenth century, the archduke held significant political power within the Austro-Hungarian Empire.
The assassination of the archduke in Sarajevo served as the immediate catalyst for the outbreak of World War I, fundamentally altering the geopolitical landscape of Europe.
From Middle French archeduc (modern French archiduc), from Latin archidux. Equivalent to arch- + duke.