BERLIN, Germany (Reuters) -- American aviator Charles Lindbergh had three German mistresses simultaneously and seven secret children whom he visited and supported for decades, according to a new book published on Monday. Eighteen months after genetic tests proved earlier claims by three Germans that Lindbergh was their father, their book called "The Double Life of Charles A. Lindbergh" says he fathered two more children with their aunt and two with his German secretary. Lindbergh, who also had six children with his U.S. wife Anne Morrow Lindbergh, became world famous for his daring 1927 solo flight across the Atlantic from New...