Hamilton, James, 2d earl of Arran, d. 1575, Scottish nobleman; son of James Hamilton, 1st earl of Arran. After the death (1542) of James V, he stood next in line to the throne after the infant Mary Queen of Scots. A Protestant and member of the pro-English party, he was chosen regent in preference to Cardinal David Beaton. However, in 1543 he became a Catholic and joined the French party. Although he had previously negotiated a marriage treaty with England, he consented to the marriage of the young queen to the French dauphin (later Francis II) and was created (1548) duc de Châtelherault in France. Forced (1554) to give up the regency to the queen mother, Mary of Guise, he joined (1559) the Protestant uprising of the lords of the congregation. He was exiled from Scotland after Queen Mary married Lord Darnley (1565). In 1569 he returned and was imprisoned until he agreed (1573) to recognize James VI (later James I of England) as king.
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