"the Duke of Argyle"
John Campbell, 2nd Duke of Argyll and Duke of Greenwich, c. 1718-25
Public DomainJohn Campbell, 2nd Duke of Argyll, c. 1718-25 - Credit: William Aikman
John Campbell, the second Duke of Argyll, was a field marshall as well as a nobleman. He was a staunch supporter of the Act of Union, and was rewarded for his furtherance of the cause with the titles of Baron Chatham and Earl of Greenwich.