Charles and Camilla attend Australian remembrance service

Turnbull, who believes that Australia should have an Australian citizen as head of state instead of the British monarch, was reminded at a news conference of criticism of Charles he had made in a 1994 book “The Reluctant Republic”.

The royal couple are on a six day tour of Australia. “It was given by an Englishman, Prince Charles”, adding: “Our own national leaders were just warm up acts for Prince Charles”.

She has since returned to her homeland of Australia, speaking of her reunion with the Prince she said: “Camilla thought it was such a amusing thing, Prince Charles said “that was such a long time ago, I don’t remember”.

Exploiting the moment, a new poll commissioned by the Australian Republican Movement, shows only 27 per cent support for Prince Charles becoming King of Australia. Governor-General Peter Cosgrove and Prime Minister Malcolm Turnbull are among the dignitaries who attended.

The couple was actually in Australia for the 97 anniversary of the national Remembrance Day to commemorate the end of World War I. The two also have separate itineraries with Camilla scheduled to trek through a paddock to watch dogs and pigs hunt for truffles at the Majura Valley in Canberra.

Charles arrived in the meeting room first and joked with the waiting press about the persistent downpours that had soaked guests during the open-air ceremony, asking if anyone had got wet.

Ms Morrow stood out from the hundreds of Tanunda school children and local residents waiting to catch a glimpse of the royal couple and when the duchess spotted her she beckoned the prince over.

The prince and prime minister were joined by their aides for the meeting that lasted around 30 minutes.

During the day Camilla sampled scrambled eggs infused with truffles and ice cream featuring the same coveted ingredient when she visited a farm that produces the delicacy.

Following expert preparation by Sage head chef Damien Brabender, who shaved it into scrambled eggs and churned truffle ice-cream, Mrs Turnbull could be heard extolling the virtues of the prized ingredient with which she and Mr Turnbull are apparently “infatuated”.

Later Charles and Camilla visited an arboretum dedicated to saving rare and endangered trees. The royal couple planted pin oak trees and placed poppies on the Roll of Honour.

“I am thrilled it’s raining”, he said “Maybe it will help them grow”.

Earlier he toured the National Museum of Australia, which has strong ties with Britain.

The scholarships between Australia and Britain are created to promote cultural work in Aboriginal and Torres Strait Islander communities and will begin next year through a partnership between the museum and The Prince’s Charities.

A didgeridoo also sounded, part of a campaign to highlight the contribution of Indigenous Australian troops in the country’s war history.