n. [ Pref. arch- + duchess. ] The consort of an archduke; also, a princess of the imperial family of Austria. See Archduke. [ 1913 Webster ]

n. [ Pref. arch- + duke. ] A prince of the imperial family of Austria. [ 1913 Webster ]

☞ Formerly this title was assumed by the rulers of Lorraine, Brabant, Austria, etc. It is now appropriated to the descendants of the imperial family of Austria through the make line, all such male descendants being styled archduke, and all such female descendants archduchesses. [ 1913 Webster ]

n. An archduchy. [ 1913 Webster ]