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Ludwig Rudolph was born in Hanover, Lower Saxony, Germany, the third child and second son of Ernst August, Prince of Hanover, Hereditary Prince of Brunswick (1914–1987) and his wife Princess Ortrud of Schleswig-Holstein-Sonderburg-Glücksburg (1925–1980). Ludwig Rudolph was a great-great-great-great-grandson of George III of the United Kingdom and a great-grandson of Wilhelm II, German Emperor.