The Despensers and their King now seemed to have attained a height of power. But a tragedy with every feature of classical ruthlessness was to follow. One of the chief Marcher lords, Roger Mortimer, though captured by the King, contrived to escape to France. In 1324 Charles IV of France took advantage of a dispute in Gascony to seize the duchy, except for a coastal strip. Edward's wife, Isabella, "the she-wolf of France," who was disgusted by his passion for Hugh Despenser, suggested that she should go over to France to negotiate with her brother Charles about the restoration of Gascony. There she became the lover and confederate of the exiled Mortimer. She now hit on the stroke of having her son, Prince Edward, sent over from England to do homage for Gascony. As soon as the fourteen-year-old prince, who as heir to the throne could be used to legitimise opposition to King Edward, was in her possession she and Mortimer staged an invasion of England at the head of a large band of exiles. So unpopular and precarious was Edward's Government that Isabella's triumph was swift and complete, and she and Mortimer were emboldened to depose him. The end was a holocaust. In the furious rage which in these days led all who swayed the Government of England to a bloody fate the Despensers were seized and hanged. For the King a more terrible death was reserved. He was imprisoned in Berkeley Castle, and there by hideous methods, which left no mark upon his skin, was slaughtered. His screams as his bowels were burnt out by red-hot irons passed into his body were heard outside the prison walls, and awoke grim echoes which were long unstilled.
Winston S. Churchill, A History of the English-Speaking Peoples: The Birth of Britain (319)