PUBLISHED: 13:53, Sat, Oct 24, 2020 | UPDATED: 13:58, Sat, Oct 24, 2020
The Prince of Wales, then 27, expressed his support to the Governor-General of Australia four moths after Whitlam's government was dismissed. Writing to Sir John Kerr - the Queen’s representative - in March 1976, Charles said: “Please don’t lose heart.
“What you did last year was right and the courageous thing to do - and most Australians seemed to endorse your decision when it came to the point.”
The handwritten letter is the first known statement of support for the sacking by a member of the Royal Family.
It was reported in The Australian newspaper and is revealed in new book The Truth of The Palace Letters: Ambush, Deceit and Dismissal in 1975 by Paul Kelly and Troy Bramston, due to be published next month.
Prince Charles backed the controversial sacking of the Australian PM in 1975, letter reveals (Image: GETTY)
The newspaper described the letter as an “embarrassment” to the Queen, insisting it was a breach of royal protocol.
Mr Whitlam led his Labor Party to power in 1972.
But his popularity plunged amid an economic crisis.
READ MORE: Secret royal letters revealed: Australians