Task: Text Categorization
Input (English): The growing influence of the Poitevins led by Peter des Roches led the wary Archbishop of Canterbury Edmund Rich to threaten this man's excommunication, and earlier this King had dismissed his advisor Hugh de Burgh at the behest of des Roches. William the Marshal was this man's first regent. The Mad Parliament met during this man's reign, and his son Edmund was offered the Sicilian throne by the Papacy. He recognized the claims of Llewelyn and gave him the title of Prince of Wales in the Treaty of Montgomery. This man lost the Battle of Lewes to an adversary who was later killed at the Battle of Evesham. This son of King John decided to repudiate a document he'd signed in 1258, which raised the ire of Simon de Montfort and other Barons. For 10 points, identify this monarch who signed the Provisions of Oxford.
Output (English): History