King Charles is reported to be considering turning Balmoral Castle into a museum dedicated to the memory of Queen Elizabeth II.
The 50,000-acre estate in Royal Deeside is worth an estimated £120million and is where Her Majesty spent each summer.
As part of his efforts to modernise and 'slim down' the monarchy, the King is now said, by insiders, to be considering the possibility of converting the castle into a site open to the public.
It is thought the location might be refashioned as a museum in memory of his mother, who passed away there on September 8.
A source told the Mirror: "Looking at the number of properties and the number of working members of the Royal Family, the King will be looking at the properties and asking: 'What value does this give to the public?'"
Various personal artefacts and items of clothing worn by the monarchy at significant points in her 70-year reign could potentially feature in exhibits, with the possible inclusion of selected pieces from the royal jewellery collection also likely to draw visitors.