Giordano Bruno, the Renaissance philosopher, must have been a spy for England during the time he served in the French embassy there  English state records show that a spy who foiled at least two assassination plots against Queen Elizabeth of England was in place in the French embassy in London at that time
Since the spy is identified in confidential English state documents only as the only clergyman working at the French embassy at that time, Bruno must have been the spy: Bruno had been ordained a member of the clergy long before he started work at the French embassy
During Bruno's tenure in the French embassy, a high degree of tension and an atmosphere of mutual suspicion prevailed between France and England.