and the Jacobite risings In 1703, the Marquisate of Douglas was elevated to a Dukedom. Archibald Douglas, 1st Duke of Douglas married Margaret Douglas (a distant relation) late in life and had no direct heir – the title of Duke became extinct on his death. By the late 17th century, more political power was wielded by the Douglases of Drumlanrig, in Dumfriesshire who are also descended from the Black Douglases. The Douglases of Drumlanrig had become Earl of Queensberry in 1633, Marquises in 1682 and Dukes in 1684. The maneuvers of James Douglas, 2nd Duke of Queensberry, contributed to the Union of 1707. During the Jacobite risings of the 18th century the Douglases continued their support for the British Government. Archibald Douglas, 1st Duke of Douglas led the volunteer horse at Battle of Sheriffmuir during the Jacobite rising of 1715. Also at that fight was the Duke's young cousin, Archibald Douglas, 2nd Earl of Forfar, colonel of the 3rd Regiment of foot, and who died of wounds taken there shortly afterward. Douglas Castle was burnt by the Highland armies of Bonnie Prince Charlie in the Jacobite rising of 1745. Douglas Castle was again burnt down in 1755, and the Duke commenced work on a new edifice designed by Robert Adam. Building work ceased on the Duke's death in 1761, and with it his Dukedom became extinct. The Marquisate of Douglas and Earldom of Angus devolved to James Hamilton, 7th Duke of Hamilton, the senior male-line descendant of William Douglas, 1st Marquess of Douglas, his great-great-great grandfather, by the way of his son, Lord William Douglas, 1st Earl of Selkirk, whom upon his marriage to Anne Hamilton, 3rd Duchess of Hamilton, became William Hamilton, Duke of Hamilton, the adoption of the surname Hamilton being one of the conditions to inheriting the Dukedom. His descendants would later add Douglas back to the surname and become the Douglas-Hamilton branch. 20th century and the World Wars In 1895, Alfred Douglas-Hamilton inherited the Dukedom of Hamilton from his cousin William Douglas-Hamilton, 12th Duke of Hamilton and became Alfred Douglas-Hamilton, 13th Duke of Hamilton. Alfred Douglas-Hamilton was the great-great-great grandson of James Hamilton, 4th Duke of Hamilton through a collateral line. During World War I, Hamilton Palace, the main family seat, was used as a hospital with his blessing. During World War II, his sons, Douglas Douglas-Hamilton, 14th Duke of Hamilton, George Douglas-Hamilton, 10th Earl of