 At Chinon and Poitiers, Joan had declared that she would provide a sign at Orléans.The lifting of the siege was interpreted by many people to be that sign, and it gained her the support of prominent clergy such as the Archbishop of Embrun and the theologian Jean Gerson, both of whom wrote supportive treatises immediately following this event.To the English, the ability of this peasant girl to defeat their armies was regarded as proof that she was possessed by the Devil; the British medievalist Beverly Boyd noted that this charge was not just propaganda, and was sincerely believed since the idea that God was supporting the French via Joan was distinctly unappealing to an English audience.