Henry Scott (1746-1812), 3rd Duke of Buccleuch, was born on 2 September 1746, the fourth son of Francis Scott, Earl of Dalkeith (1721-1750) and his wife Caroline, Baroness Greenwich (1717-1794). On 2 May 1767 he married Lady Elizabeth Montagu (1743-1827), and the pair settled in his ancestral home of Dalkeith house in Midlothian, Scotland. A pupil of Adam Smith's from the 1760s, and a significant Scottish landholder, Scott participated in Scottish economic and political culture throughout the second half of the eighteenth-century, investing in the aristocracy-centred Ayr Bank in 1769, securing Smith a position on the Scottish board of customs in 1776 and soliciting volunteers for a home front militia against France in 1778. In 1810 Scott's brother William Douglas, 4th duke of Queensberry (1724-1810), died, and Scott became the 5th duke of Queensberry. He died on 11 January 1812, at Dalkeith House.