CHINESE intelligence officers infiltrated a charity set up by the late Prince Philip.
They wheedled their way into FaithInvest to conduct operations and buy influence.
Agents teamed up with the charity to meet the Duke of Edinburgh at Windsor Castle. The Duke also met the charity’s co-founder, Martin Palmer, at Buckingham Palace.
The revelations come after UK intelligence exposed a Chinese spy ring that tried to infiltrate Parliament.
And intelligence sources have now revealed that Communist agents working for a Beijing department accused by MI5 of espionage visited the Palace in 2017.
They also met the Prince on several occasions through a second charity, the Alliance of Religions and Conservation (ARC), which was also set up by Mr Palmer.
The agents have been operating through the China Taoist Association. It joined forces with FaithInvest and last sent a delegation to the Palace in 2017.
The Duke posed for a picture with the group but there is no suggestion that either he or Mr Palmer knew that the group had been compromised.
The group is controlled by Beijing’s United Front Work Department.
A source said: “The United Front Work Department is used to present a more acceptable face to a fairly unpleasant regime.
“But they are also involved in ruthless intelligence and foreign interference activities as well.”
Christine Lee — outed by MI5 earlier this month for trying to buy influence in Parliament — is among their network of spies feeding information back to China.
Yesterday it also emerged Tory baroness Lady Bates attended a conference hosted by the group.
When the allegations were put to Mr Palmer, he said: “I have worked with Taoist, Buddhist and Christian groups in China on environmental issues since the early 1990s through the ARC.
“Since the eighth century, all religious institutions in China have officially come under a government ministry because the Chinese government knows that faiths can be both a great driver of social cohesion and engagement and also a source of opposition and dissent — and that tension remains today.
“For most of the time ARC worked with Chinese religious groups, that ministry was Sara — the State Administration for Religious Affairs.
“But all religious institutions were absorbed into the United Front Work Department when Sara was closed a few years ago.
“The China Taoist Association has played a major role in discussions on faiths and ecology, both in China and within Chinese communities around the world.
“That is why Prince Philip, who founded ARC, met the Taoists on a number of occasions.”
Buckingham Palace said it was a matter for FaithInvest.
