Tweeddale, John Hay, 1st marquis of [S] (1625-97). Hay had been sympathetic to the covenant and fought against the king at Marston Moor, but in 1648 supported the Engagement and joined the Scottish army which was defeated at Preston. He attended Charles II's coronation at Scone in 1651 and succeeded to the earldom in 1653. He then came to terms with the Cromwellian regime. After the Restoration he was a member of the Privy Council [S] 1661-74, dismissed through the influence of Lauderdale, but reinstated in 1680. He gave strong support to William and the Glorious Revolution and was raised to the marquisate in 1694. From 1692 until 1696 he was lord chancellor [S] and served as commissioner to the 1695 Parliament. In 1696 he was dismissed by William as a scapegoat for England's anger at the Darien venture.

earl and 1st marquess of, 1626–97, Scottish statesman. In the English civil war he left the party of Charles I and fought for Parliament at Marston Moor (1644), but when Charles promised to support Presbyterianism, he fought for the king at Preston (1648). At the Restoration (1660), he was made a privy councilor for Scotland and advanced to president of the council in 1663. He was dismissed (1674) from office because he favored leniency toward the Covenanters, but he later served Charles II and James II as commissioner of the treasury and privy councilor. Supporting the accession (1688) of William III, he was again made privy councilor and a lord of the treasury (1689), high chancellor of Scotland (1692), and marquess (1694). In 1695 he conducted the inquiry into the massacre at Glencoe. The next year he was dismissed from the chancellorship for approving in the king's name the Darién Scheme.