Charles Montagu, 1st Duke of Manchester (c. 1656-1722), son of Robert Montagu, 3rd Earl of Manchester, was educated at Trinity College, Cambridge, and succeeded to his father's earldom in 1683. Warmly sympathizing with the Whig revolution of 1688, he attended William and Mary at their coronation, fought under William at the Boyne, became a privy councillor in 1698, and held variois important diplomatic posts between that date and 1714, serving also as Secretary of State for the Southern Department between 1700 and 1702. In 1714 he received an appointment in the household of George I, by whom on 28 April 1719 he was created Duke of Manchester. He died on 20 January 1722.

Preceded by:
New Creation
Duke of Manchester Followed by:
'''William Montagu
Preceded by:
Robert Montagu
Earl of Manchester Followed by:
'''William Montagu