Henry Boyle, Earl of Shannon (1682-1764) was MP for Middleton (1707-1713) and for Kilmallock (1713-5). In 1715 he was elected for the Co. of Cork and married Catherine, daughter of Chidley Coote. After her death in 1726, he married Henrietta Boyle, youngest daughter of his relative Charles, Earl of Burlington and Cork. He was entrusted the mangagement of his estates in Ireland and much enhanced their value. In 1733 he was made a member of the Privy Council, Chancellor of the Exchequer and Commissioner of the Revenue in Ireland. He was also elected speaker of the House of Commons there. In 1756, he was granted the titles of Baron of Castlemartyr, Viscount Boyle of Bandon and Earl of Shannon. He sat for many years in the House of Peers in Ireland and frequently acted as Lord Justice there.