Archduke
a duke whose authority and power is superior to that of other dukes. In France, in the reign of Dagobert, there was an Archduke of Austrasia; and at a later period, the provinces of Brabant and Lorraine were termed archduchies. The Dukes of Austria assumed the title of archduke in 1156; but the dignity was not confirmed till 1453. The last to assume the title were the princes of the former imperial House of Austria.
ARCHELAUS (ar-kel'ā-us), a king of Macedon, natural son and successor of Perdiccas II. He was a liberal patron of literature and the arts, and greatly favored, among others, Euripides and Zeuxis. He died about 398 в. c.