After the senior line of the Árpád dynasty died out in 1301, the succession to the throne of the Kingdom of Hungary became contested by several foreign monarchs and other runners. One of them was Charles Robert of Anjou, the Pope's champion. Over several years Charles drove his foreign opponents out of the country and installed on the Hungarian tron. At that time Hungary was a confederation of small kingdoms, principalities and dukedoms. However, his rule remained nominal in many parts of the Kingdom because several powerful magnates, local kings, dukes and prices still did not recognize him as the supreme king. Initially, Charles's chief adversary was Máté Csák, who controlled several counties in western and north parts of the Hungary. However, eventually he allied himself with the Aba fa