Lapurdi stopped relying on England. In 1152 the duchy of Aquitaine joined the English crown and Lapurdi was under its dominion until the French began the invasion. They signed the peace treaty at the castle of Morcilla de Aiherra, which can be seen in the photo, and they granted power over the territory to the French crown if they respected the Lapurdi's powers. Bayona fought the French until 1451, but surrendered in August.