Genevieve urged him to do so. King Henry V's English army killed many French prisoners of war after the Battle of Agincourt in 1415. This was done in retaliation for the French killing of the boys and other non-combatants handling the baggage and equipment of the army, and because the French were attacking again and Henry was afraid that they would break through and free the prisoners to fight again. In the later Middle Ages a number of religious wars aimed to not only defeat but also to eliminate enemies. Authorities in Christian Europe often considered the extermination of heretics and heathens desirable. Examples of such wars include the 13th-century Albigensian Crusade in Languedoc and the Northern Crusades in the Baltic region. When asked by a Crusader how to distinguish between the Catholics and Cathars following the projected capture (1209) of the city of Béziers, the papal legate Arnaud Amalric allegedly replied, "Kill them all, God will know His own". Likewise, the inhabitants of conquered cities were frequently massacred during Christians' Crusades against Muslims in the 11th and 12th centuries. Noblemen could hope to be ransomed; their families would have to send to their captors large sums of wealth commensurate with the social status of the captive. Feudal Japan had no custom of ransoming prisoners of war, who could expect for the most part summary execution. In the 13th century the expanding Mongol Empire famously distinguished between cities or towns that surrendered (where the population was spared but required to support the conquering Mongol army) and those that resisted (in which case the city was ransacked and destroyed, and all the population killed). In Termez, on the Oxus: "all the people, both men and women, were driven out onto the plain, and divided in accordance with their usual custom, then they were all slain". The Aztecs warred constantly with neighbouring tribes and groups, aiming to collect live prisoners for sacrifice. For the re-consecration of Great Pyramid of Tenochtitlan in 1487, "between 10,000 and 80,400 persons" were sacrificed. During the early Muslim conquests of 622–750, Muslims routinely captured large numbers of prisoners. Aside from those who converted, most were ransomed or enslaved. Christians captured during the Crusades were usually either killed or sold into slavery if they could not pay a ransom. During his lifetime ( – 632), Muhammad made it the responsibility of the Islamic government to provide food and