In Medieval England political martyrs were not uncommon, particularly in periods of political unrest, expressed in deeply religious terms, and in many cases that hostility was directed toward two Kings, Henry III (r.1216-1272) and Edward II (r.1307-1327). Two leaders of political reform and opposition came to prominence: Simon de Montfort and Thomas of Lancaster. In life they presented a dangerous opposition to an over-powerful monarchy, yet in death, they joined a long line of anti-royal saints and martyrs, allowing their followers to continue in their resistance. Adapting from his MA dissertation, Edward Gamble develops his thesis to investigate the political, religious, social and cultural phenomena that were political cults in the late thirteenth and early fourteenth centuries.