Former royal aide discloses his mother's hidden MI5 career after decades of silence

Jamie Lowther-Pinkerton, who once served as a private secretary to Prince William, Prince Harry and Kate Middleton, disclosed that his mother, Sue Lowther-Pinkerton, entered MI5 after the war and remained there through the early Cold War. Her intelligence tenure, which began following a stint in Army intelligence in Singapore, was kept secret from her family until a television program about the alleged "fifth man" of the Cambridge spy ring elicited a sharp dismissal of the rumors.

Sue’s earlier experiences included work with the ATS, driving artillery limbers at the Royal School of Artillery, and a brief posting in Singapore handling secret communications. She left MI5 in 1956 to raise a family and later devoted herself to the Poppy Appeal and Meals on Wheels. Jamie has channeled her remarkable story into his novel "Beyond the Edge of Light," featuring a heroine modeled on his mother, who died in 2023 at age 99.