In 1326, Isabella of France and Roger Mortimer launched a swift invasion of England, drawing key nobles to their cause. King Edward II’s authority crumbled as his supporters abandoned him, and his ally Hugh Despenser was executed in November 1326. By January 1327, Edward II was forced to abdicate, and the throne passed to Edward III, whose reign officially began on 25 January 1327. The campaign demonstrated the power of alliances, decisive action, and popular support in shaping the fate of monar