Abstract
This article examines the complex phenomena of the Farfan, a Christian knight serving a Muslim ruler during the religious wars of 13th century Iberia. More specifically, it breaks down the development of Christian mercenary armies within the Almohad Caliphate of the late 12th, early 13th century as it relates to the Caliphates loss of political power in the region. Using primarily Islamic sources this article traces the history of the Caliphate followed by brief discussions on the religious nature of the Almohad movement, followed by the military structure of Maghrebi states of the period, with special focus on the distinction between a 'slave-soldier', and a mercenary. This article concludes that the massive increase in Christian military involvement in the Caliphates last years is a direct consequence of political and military failures over the course of Almohad rule in Iberia and the Maghreb.