King Charles III visited the South East region 41 years ago to officially open the new Mount Gambier building which is now known as the Sir Robert Helpmann Theatre.
A plaque in the foyer marks this gala occasion.
Then known as the Prince of Wales, he spent the night at a room at the nearby Jens Hotel.
The apocryphal story is often told the City Fathers of 1981 arranged for the chiming Town Hall clock in Commercial Street East to be temporarily silenced whilst the prince was in the city.
Earlier in 1954, Her Majesty the Queen and His Royal Highness the Duke of Edinburgh flew into the Blue Lake city for a busy round of engagements hosted by Mount Gambier Mayor John Hugh Marks.
The itinerary for the royal couple included a mass assembly of school children from across the region at Vansittart Park.
The Duke of Edinburgh also visited Mount Gambier in the 1970s on a private visit as the guests of the Livingston family of Benara.
Another Royal visitor to the region was Prince George who stayed overnight with his brother at Yallum Park at Penola in 1881.
Prince George ascended the throne as King George V in 1910 and was the great grandfather of King Charles.
