John St John, 11th Baron St John of Bletso
John St John, 11th Baron St John of Bletso was an English peer.
The son of Andrew St John and his wife Jane Blois, daughter of William Blois of Cockfield Hall, Suffolk, he was a nephew of Paulet St John, 8th Baron St John of Bletso and succeeded his brother Rowland St John, 10th Baron St John of Bletso to the family title in 1722.
Lord St John married Elizabeth Crowley at Greenwich on 6 March 1725. Their children included:
British comedian and actor Alexander Armstrong is a direct descendant of Lord St John.
