In January 1683 he entered the navy but in May 1685 he was Commander of a troop of Horse against Archibald Campbell, Earl of Argyll. On 18 January and 28 February 1690 his marriage to Margaret Nairne was contracted. Under the special remainder in the creation of his father-in-law's title, he became the second Baron Nairne and as Lord Nairne was admitted to Parliament on 22 April 1690.
In consequence of his opinions he was suspected of abetting the abortive invasion of Scotland by the French in March 1708. On 8 March 1708 a warrant was issued for his apprehension; however, no evidence could be obtained against him. He engaged in the rising of 1715, commanding one of four regiments of Atholl men. Taken prisoner at Preston, 14 November 1715, he was sent to the Tower of London. Condemned to be executed for high treason, his title forfeited but was respited and allowed to benefit of the Act of General Pardon, 6 December 1717. He died at his seat in Scotland aged sixty-one.

Source: Leo van de Pas