Sir James Steuart, 3rd Baronet of Goodtrees and 7th Baronet of Coltness (; 21 October 1712 – 26 November 1780), also known as Sir James Steuart Denham and Sir James Denham Steuart, was a prominent Scottish Jacobite and author of "probably the first systematic treatise written in English about economics" and the first book in English with 'political economy' in the title. He assumed the surname of Denham late in life; he inherited his cousin's baronetcy of Coltness in 1773. Early life He was one of 12 children of Sir James Steuart, Solicitor General for Scotland under Queen Anne and George I, and was born in Edinburgh. His mother was Anne Dalrymple, daughter of Lord North Berwick, the Lord President of the Court of Session. After graduating from the University of Edinburgh he was admitted to the Scottish bar at the age of twenty-four. He then spent some years on the Continent, and while in Rome entered into relations with the Young Pretender, Charles Edward Stuart. He was in Edinburgh in 1745, and so compromised himself that, after the battle of Culloden, he found it necessary to return to the Continent, where he remained until 1763. It was not until 1771 that he was fully pardoned for any complicity he may have had in the rebellion. He died at his family seat, Coltness, in Lanarkshire. He married Lady Frances Wemyss (1722–1789), younger sister of David Wemyss, Lord Elcho, who played a prominent role in the 1745 Rising. Their son, Sir James Steuart Denham (1744-1839), edited his father's works, was a Member of Parliament, and Colonel of the Scots Greys. He ended his career as a General and lived to be ninety-five; on his death, both baronetcies went to a cousin who died in 1851, since when they have been dormant. Their daughter Agnes married Henry Erskine, 10th Earl of Buchan. Family Steuart was descended from another Sir James Stewart, knight, an Edinburgh merchant and staunch Presbyterian, who supported Charles II in the British Civil Wars of 1642-1660 and who died in 1681, having made enough money to purchase landed estates for his sons; three of those sons were prominent enough to have their families receive the title of Baronet after the Glorious Revolution of 1688. They were: Sir Thomas Steuart of Coltness, the first son; Sir James Steuart of Goodtrees, Lord Advocate, the fourth son; Sir Robert Steuart of Allandale,