Windsor was the safe haven that kept Princess Elizabeth and her sister Margaret safe during the war, and it is where Elizabeth fell in love with Prince Philip.

As the family made Windsor their home, Philip grew restless. Elizabeth assigned him as ranger of Windsor Great Park, but that only led to more problems. Meanwhile Margaret was a party animal, the Queen Mother ran up a debt of £7m, and the papers began to print stories about extra-marital affairs.

In 1972, the Queen celebrated her 25th wedding anniversary. She was photographed with the whole royal clan at Windsor, looking relaxed and happy. Twenty years later, three of her four children were divorced and her beloved home had gone up in flames.