Buckingham Palace, Windsor Castle and the Palace of Holyroodhouse - these buildings have been part of British royal history for hundreds of years. Presented by Fiona Bruce, The Queen's Palaces showcases the art and architecture, the interior decoration and the treasures stored inside these fabulous buildings and reveals the surprising and fascinating stories behind them. Combining Fiona's role as interested amateur with contributions from Royal Collection curators and experts, each programme offers a mix of high level insight and interesting and curious stories. In this episode, Britain's least well-known royal palace and yet probably the most romantic, Edinburgh's Palace of Holyroodhouse sits in the shadow of the dormant volcano Arthur's Seat. It is also one of Britain's smallest palaces and yet events at Holyrood have determined the fate of three countries - England, France and Scotland. It was also the last place where a royal prince challenged the right of an English king to sit on the throne. Fiona Bruce discovers remarkable objects from the Royal Collection that are intimately bound to the Palace's turbulent history - from the spectacular Darnley Jewel with its many hidden messages to the cat-and-mouse needlework of a doomed queen.