Ernest Augustus IV, Prince of Hanover (German Prinz Ernst August von Hannover; 18 March 1914 - 9 December 1987) was the eldest son of Ernest Augustus, Duke of Brunswick-Lüneburg and Princess Viktoria Luise of Prussia. He lost his titles when his father abdicated in 1918. After his father's death in 1953, he became head of the House of Hanover. Ernest Augustus is father to Ernst August Prinz von Hannover. March 18 is the 77th day of the year in the Gregorian calendar (78th in leap years). ... 1914 is a common year starting on Thursday. ... December 9 is the 343rd day (344th in leap years) of the year in the Gregorian calendar. ... 1987 is a common year starting on Thursday of the Gregorian calendar. ... Ernst August (17 November 1887-30 January 1953), reigning Duke of Brunswick-Lüneburg (2 November 1913-8 November 1918), was a grandson of King George V of Hanover, whom the Prussians deposed in 1866. ... Princess Viktoria Luise (13 September 1892–11 December 1980), Duchess of Brunswick-Luneburg, was the seventh child and the only daughter of Emperor Wilhelm II and Empress Augusta Viktoria. ... 1918 was a common year starting on Tuesday (see link for calendar). ... 1953 is a common year starting on Thursday. ... The House of Hanover (the Hanoverians) were a German royal dynasty which succeeded the House of Stuart as kings of Great Britain in 1714. ... His Royal Highness Ernst August, Prince of Hanover (in English also known as Ernest Augustus of Hanover; born 26 February 1954 in Hanover, Lower Saxony, Germany) is the oldest son of Ernest Augustus IV, Prince of Hanover (1914-1987) and his first wife, Ortrud Prinzessin von Schleswig-Holstein-Sonderburg-Gl...