It was named after King Lothair II, who received this territory after the Kingdom of Middle Francia of his father, Lothair I, had been divided among his three sons in 855.
It comprised present-day Lorraine (France), Luxembourg, Saarland (Germany), Netherlands, and the eastern half of Belgium, along with parts of today's North Rhine-Westphalia (Germany), Rhineland-Palatinate (Germany) and Nord (France). Lotharingia ( Latin: Regnum Lotharii, Regnum Lothariense, Lotharingia French: Lotharingie German: Reich des Lothar, Lotharingien, Mittelreich Dutch: Lotharingen) was a medieval successor kingdom of the Carolingian Empire.
