John Campbell, 4th Duke of Argyll
…the Royal North British Dragoons in 1752, a position he held until his death. Upon inheriting the dukedom and other titles upon the death of his cousin Archibald Campbell, 3rd Duke of Argyll in 1761, he left the House of Commons and became governor of Limerick and a Scottish representative peer. He became a member of Privy Council in 1762…