The pact between Imam Jalaluddin Hasan and the Mongols, as hinted by Juvaini and explicitly described by Rashiduddin, became impaired afterwards. In 635/1238, Alauddin Muhammad dispatched an embassy, in cooperation with the Abbasid caliph al-Mustansir (d. 640/1242) to Louis IX (d. 1270), the king of France, and Henry III (d. 1272), the king of England, to report the incoming stormy inroads of the Mongols, and to evaluate possibility of an alliance with the Christian West against the Mongols. Mathew Paris (d. 1259) has written in his "Chronica Majora" (ed. by Henry R. Luard, London, 1876, 3rd vol., pp. 487-9) the account of this embassy in England. The Bishop of Winchester, who was present at the audience, interrupted the envoy's appeal with harsh words, reflecting the hostile policy of the church against the Muslims.