French jurisdictional supremacy in Gascony: one aspect of the ducal government's response

As a result of the 1259 treaty of Paris, the king of England resumed a feudal relationship with the French monarch, thus holding his duchy of Gascony as a fief. This meant that Capetian officials could exercise their master's jurisdictional authority in the duchy, in part because of the supreme appellate powers of the royal court, the Parlement of Paris. This they did with enthusiasm and skill, causing considerable disruption to English power in the duchy. Accepting the challenge, ducal officials devised a number of tactics to thwart the exercise of French jurisdiction in Gascony. These methods were altogether illegal or even criminal in nature, but the officials felt they were necessitated by the critical threat of Capetian authority to Plantagenet control of Gascony. Unfortunately, such tactics did little to alleviate their jurisdictional problems. Ducal authorities failed to create any consistent and systematic program for ending permanently Gascon judicial appeals to the French court, and they were hamstrung both theoretically and physically in the haphazard efforts they did make. Far from halting the advancement of Capetian jurisdictional authority in the duchy, the unlawful methods merely underscored the precarious nature of the English position there.