14 (UPI) --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 ... Anthony Blunt, who was employed ...

MI5 documents reveal her private secretary ‘saw no advantage in telling her’ about treachery of Buckingham Palace art expert

Documents reveal how the monarch was not told the full story about Anthony Blunt, a Soviet mole inside MI5 and member of the Cambridge spy ring, until nearly a decade after his confession

The National Archives has released declassified MI5 files, including the confession of a civil servant who worked in the Cabinet Office, Treasury and Foreign Office in the 1930s, 1940s and 1950s – and spied for the Soviet Union at the same time.

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.

Anthony Blunt, who worked at Buckingham Palace as Surveyor of the Queen’s Pictures, was secretly a Soviet spy during WWII.

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

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.

Five Cambridge University graduates served as double agents, leaking highly classified information to the Soviet Union

Former aide of late Queen Elizabeth II, Anthony Blunt, worked as spy for the Russia for almost 10 years without the queen knowing about it.

Newly declassified files reveal the late Queen's very unexpected reaction to the art historian's shocking secret.