Prince Charles bought his Gloucestershire country pile, Highgrove House, in 1980 – the year before he married Diana – for around £865,000 ($1.1 million) from Maurice Macmillan, the son of former UK Prime Minister, Harold Macmillan. The deal was slammed by Labour MP Reg Race who called it: “bloody outrageous on a day that the Government are cutting social security benefits for millions of people.” Princess Diana reportedly wasn't a fan of the nine-bedroom property, which she thought was too small and not private enough.

The secrets of Prince Charles’ homes and properties