House of Ardenne
The House of Ardenne was an important medieval noble family from Lotharingia, known from at least the tenth century. They had several important branches, descended from several brothers:
- The House of Ardenne–Verdun, with several dukes of Lower Lotharingia, descended from Count Gozelin.
- The House of Ardenne–Bar, with several dukes of Upper Lotharingia, descended from Frederick I, Duke of Upper Lorraine.
- The House of Ardenne–Luxembourg, descended from Count Sigfried.