Pedro the Cruel flees Castile to Bordeaux

1366

Half-brother Henry of Trastamara, supported by Du Guesclin and free companies of mercenaries funded by French gold, drove Pedro from his throne. Pedro fled north to plead with the Black Prince in Aquitaine, who agreed to invade Castile on his behalf in exchange for territorial concessions. The Hundred Years' War was about to spill into Iberia.