At the Battle of Langside, the forces of Mary Queen of Scots are defeated by a confederacy of Scottish Protestants under James Stewart, the regent of her son, King James VI of Scotland. During the battle, which was fought out in the southern suburbs of Glasgow, a cavalry charge routed Mary’s 6,000 Catholic troops, and they fled the field. Three days later, Mary escaped to Cumberland, England, where she sought protection from Queen Elizabeth I.