British secret intelligence did not tell Queen Elizabeth II that her royal art adviser confessed to spying for the Soviet Union for almost a decade, according to newly released documents. The revelations come from a large tranche of documents made public by British intelligence service MI5 on Tuesday.

Recently declassified MI5 files have shed light on one of the most infamous chapters in Cold War espionage, revealing previously hidden details about Soviet infiltration in Britain's intelligence establishment and the royal household.

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.