406px-Willem_I_in_kroningsmantel
Besides King of the Netherlands William wore Titles Prince of Orange-Nassau, frost of Fulda (1803-1806), Earl of Corvey, Weingarten and Dortmund (1802-1806) and later as William Sovereign Prince of the Sovereign Principality of the United Netherlands (1813-1815), Duke of Luxembourg (1815), Grand Luxembourg (1815-1840) and Duke of Limburg (1839-1840). After abdication He took the title and name King Frederick William of Nassau Count on.