João Nisa (CHSC, Universidade de Coimbra) is a PhD candidate in Medieval History at Coimbra with a project analysing late-medieval military organization and practice of war in the Alentejo region (Portugal). He is a research member of the project Frontowns –Think Big on Small Frontier Towns: the Alto Alentejo and Alta Extremadura Leonesa (13th – 16th centuries). His interests lay in medieval warfare, military laws and regulations, and palaeography, besides the study of bullfighting in the medieval period.