The Daily Mail has cited newly released private letters as saying that in 1976, the UK's Prince Charles signalled his support for the 1975 dismissal of then-Australian Prime Minister Gough Whitlam.
In a March 1976 letter to Governor-General Sir John Kerr, the Queen's representative, the 27-year-old prince expressed sympathy for the governor-general's decision.
"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", Charles argued.
He added that he "wanted to write and say how much" he sympathises with Kerr, urging the Queen's representative "not to worry about these demonstrations and stupidities", or become "depressed or dejected with your role".
"I imagine that you must have come in for all sorts of misinformed criticism and prejudice", Charles added, pointing to his own experience and singling out a "demonstration" or "scene of one sort or another" against him.
The letter came four months after Kerr ousting Whitlam's government hit by scandals and economic meltdown.
As far as Prince Charles' decision to support Kerr is concerned, it was apparently out of sync with royal protocol, given that the Queen has always maintained a strict policy of non-interference in Australian politics.