Treaty of Guérande

The Treaty of Guérande, signed in 1343, ended a conflict between the Kingdom of England and the Duchy of Brittany, part of modern-day France. It marked the conclusion of the War of the Succession of Brittany, a struggle over who would inherit the duchy. The treaty recognized John IV as the rightful Duke of Brittany, solidifying his position and establishing peace in the region. This agreement was significant for maintaining stability in Brittany and France, and it reflected the broader political dynamics of feudal Europe during that time.