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In page John Middleton (British Army officer):

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Middleton was closely attached to the Duke of Argyll from 1709 or before and followed the Duke's political affiliations. He was elected Member of Parliament (MP) for Aberdeen Burghs at the 1713 general election.[1] At the 1715 general election he was defeated at the poll, but petitioned and was seated as Whig MP for Aberdeen Burghs on 22 July 1715. In 1717 he followed the Duke of Argyll into opposition and two years later followed him back to the government side. At the 1722 general election he was again defeated at the poll at Aberdeen and then seated on petition on 25 October 1722. He was returned unopposed in the general elections of 1727 and 1734 and remained MP until his death in 1739.[2]