Prince Philip's disappointment over his son's affair with Camilla Parker-Bowles has been exposed in shocking letters of support sent to Princess Diana.
An explosive documentary, released on Netflix, claims the Duke of Edinburgh gave the Princess Of Wales his complete support and criticises Prince Charles over his actions.
“Private correspondence reveals the sympathy and support of an unlikely family at the heart of the family," the documentary claims.
The letters state: “I can only repeat what I have said before.
“If invited I will always do my utmost to help you and Charles to the best of my ability but I am quite ready to concede that I have no talent as a marriage counsellor.
“We don’t approve of either of you having affairs.
“Charles was silly to risk everything for Camilla for a man of his position.”
Princess Diana's private secretary between 1989 and 1996 said, "Here at last was written proof that it was acknowledge, recognised, and it was sympathy for her."
Historian Sarah Gristwood said of the stunning letters: “Never mind how Camilla might felt about that he was being supportive towards Diana and no one knew better than Prince Philip just how hard it was for an outsider to come into the Royal Family.”