By Michael Taulier
Abstract: This thesis addresses the military aspects of the Albigensian Crusade in the region of Languedoc between 1209 and 1218. The purpose of the research is to move beyond the conventional focus on Catharism and its attendant heresy in order to examine the martial endeavors of the northern crusaders led by Simon IV de Montfort against Raymond VI of Toulouse and the southern forces. A comparative model is applied to the discussion and analysis of a number of sieges, field battles and descriptions of atrocities committed during the crusade. Light is shed on the difficulties faced by Montfort in waging a war in hostile territory and reveals a set of contrasts and similarities between military engagements along with a shift of intent from the original aim of the expedition designed to root out heresy, to private ambitions consisting of territorial aggrandizement and the acquisition of power.