Ernst August, Prince of Hanover, Duke of Brunswick and Lüneburg (
Ernst August Albert Paul Otto Rupprecht Oskar Berthold Friedrich-Ferdinand Christian-Ludwig Prinz von Hannover Herzog zu Braunschweig und Lüneburg Königlicher Prinz von Großbritannien und Irland; born 26 February 1954) is head of the deposed royal
House of Hanover which held the thrones of the former
Kingdom of Hanover (until 1866) and of the sovereign
Duchy of Brunswick (1913 to 1918). As the husband of
Princess Caroline of Monaco, he is the brother-in-law of
Albert II, Prince of Monaco. His wealth is estimated at £500 million.