Answer 1 of 5. These are monks who are knights you wouldnt want to mess with one they pray several times a day and they fight like lions. Pin On 07 Medieval Warfare Xi Xiii Th In time the Crusades turned against other targets including eastern European pagans and the Spanish Moors. . Who fought each other in the crusades. The death of Henry in 1189 however meant the English contingent came under the command of his successor King Richard I of England known as Richard the Lionheart. Timeline of the Crusades. The crusades were ultimately won in the East by the Muslims when the Bahri Mamluks conquered Acre in 1291. Young men who were being trained for war were fighting each other. Even dissident Christians came under attack with the launch of the Albigensian Cruade against the Cathars of southern France. The Eastern and Western Roman Empires. The Europeans and the Arabs. The Leader Christian St Bernard of clar...