8. Edward VIII – Close Ties With Hitler
The ex-monarch and Queen Elizabeth II’s uncle along with his wife were said to have engaged with Adolf Hitler on several occasions.
British Intelligence agencies had reasons to believe that Edward’s wife was providing German elites with information that he didn’t secure.
As Britain was allied with Germany’s enemies at the time, the scandal was kept under wraps for the duration of World War II, till their ties were exposed in 1957.