William Cadogan, 1st Earl Cadogan

Lieutenant-General William Cadogan, 1st Earl Cadogan (c. 1671-1726) 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.
A strong supporter of the Hanoverian Succession, he took part in the suppression of the 1715 Jacobite Rebellion and succeeded Marlborough in 1722 as Master-General of the Ordnance and senior army commander.