In 1964, Sir Anthony Blunt, the royal family's picture surveyor and renowned art historian, finally admitted that he had been a Soviet agent since the 1930s.

A photo of Anthony Blunt inside an MI5 file made available to the National Archives in London on Monday.© James Manning A passage showing Queen Elizabeth II's reaction after learning about ...

Top secret MI5 files detailing first-hand accounts of confessions of three of Britain's most notorious double agents including Kim Philby and Anthony Blunt who spied for the Soviet Union were ...

LONDON — Queen Elizabeth II was not officially informed about the treachery of a senior palace courtier for nearly a decade, newly declassified documents reveal. Anthony Blunt served as the ...