The Hospitallers were rivals of the Knights Templar, but Pope Alexander III persuaded Roger to make a truce with them in 1179. In 1184 he toured Europe with Arnold of Torroja, the Grand Master of the Templars, and Heraclius, the Latin Patriarch of Jerusalem, and established the Hospitaller Order in England, France and Germany. On his way back he helped the Normans attack Thessalonica in 1185.