In 1568, Mary escaped from her imprisonment at Loch Leven Castle, leading to several years of sporadic violence. The Earl of Moray defeated Mary's troops at the Battle of Langside, forcing her to flee to England, where she was subsequently kept in confinement by Elizabeth. On 23 January 1570, Moray was assassinated by James Hamilton of Bothwellhaugh. The next regent was James's paternal grandfather Matthew Stewart, 4th Earl of Lennox, who was carried fatally wounded into Stirling Castle a year later after a raid by Mary's supporters. His successor, the Earl of Mar, "took a vehement sickness" and died on 28 October 1572 at Stirling. Mar's illness, wrote James Melville, followed a banquet at Dalkeith Palace given by James Douglas, 4th Earl of Morton.