Task: Text Categorization
Input (English): In Weber's opera Oberon, he provides the impetus for the slaying of Babekan and marriage of Rezia to Huon. His son Chariot uses a chessboard to kill the son of Ogier the Dane. Historically, the Basques ambushed the rear guard of his army at Roncesvalles, where his legendary nephew was killed. FTP, identify this man who brought the scholarly monk Alcuin to his court and who in the chansons de geste was surrounded by twelve men, including Malagigi the Enchanter, Florismart, and Roland.
Output (English): History