I advised late Queen for 12 years and I know Kate William decided right time to release message

PRINCESS Kate and William decided the right time to release her important message, a royal expert has claimed. The Princess of Wales, 42, revealed she was undergoing preventative chemotherapy in a brave video message last week. And royal commentator Dickie Arbiter explained how the late Queen gave a tribute to Princess Diana on the eve of her funeral. The Queen s former aide told The Sun s Royal Exclusive show: She was up at Balmoral Castle caring for her grandchildren William and Harry. Read more: The Sun delivers breaking news, latest gossip and incredible exclusives around the world with hubs in London, New York, Scotland and Ireland. Covering topics