For a decade, Queen Elizabeth II lived without knowing that her own art advisor, Anthony Blunt, a trusted man in charge of overseeing the invaluable Royal Collection, was living a double life as a Soviet agent.

Documents newly declassified by MI5, Britain's internal intelligence agency, show the late Queen Elizabeth II was not informed for almost 10 years that a member of her staff had spied for the then-Soviet Union.

Sir Anthony Blunt, the surveyor of the Queen's pictures, confessed in 1964 that he had been a Russian agent since the 1930s, when he was recruited into the Cambridge spy ring

Queen Elizabeth II wasn’t told details of her long-time art adviser's double life as a Soviet spy because palace officials didn’t want to add to her worries, newly declassified documents reveal.

Queen Elizabeth II was not officially informed for nearly a decade that Anthony Blunt was a Soviet spy, newly declassified documents reveal.

Declassified documents confirm that the late Queen Elizabeth II of England was not informed until many years later that she had a KGB spy amongst her members of staff. She didn't like him anyway.