Lieutenant-General William Cadogan, 1st Earl Cadogan was an Irish-born British Army officer. He began his active military service during the Williamite War in Ireland in 1689 and ended it with the suppression of the 1715 Jacobite Rebellion. A close associate and confidant of the Duke of Marlborough, he was also a diplomat and Whig politician who sat in the English and British Houses of Commons from 1705 until 1716, when he was raised to the peerage as Baron Cadogan.

General Charles Churchill was a British Army officer who served during the War of the Spanish Succession and an English politician who sat in the English and British House of Commons from 1701 to 1710. He was a younger brother of John Churchill, 1st Duke of Marlborough and both his military and political careers were closely connected with his brother's. Along with Marlborough's Irish Chief of Staff William Cadogan, he was one of Churchill's closest advisors. He was a Tory, in contrast to his Whig brother who tolerated and possibly used Churchill's Tory connections.