Princess Marie Amelie of Baden was the youngest daughter of Charles, Grand Duke of Baden and Stéphanie de Beauharnais. In 1843, she married the Scottish nobleman William Hamilton, Marquess of Douglas and Clydesdale. They became the Duke and Duchess of Hamilton upon the death of William's father in 1852. Their only daughter Mary married the future Albert I, Prince of Monaco and was the mother of Louis II.

Brodick Castle is a castle situated outside the port of Brodick on the Isle of Arran, an island in the Firth of Clyde, Scotland. It was previously a seat of the Dukes of Hamilton, but is now owned by the National Trust for Scotland. The castle is a Category A listed building and the grounds are included in the Inventory of Gardens and Designed Landscapes in Scotland.