It was necessary that the diocesan bishops should be assisted in their heavy task of tracking down heretics, and accordingly the Holy See had resource to legates who were furnished with extraordinary powers to cope with so perplexing a situation. In 1177 as legate of Alexander III, Peter, Cardinal of San Crisogono, at the particular request of Count Raymond V, visited the Toulouse district to check the rising tide of Catharist doctrine.[43] In 1181, Henry, Abbot of Clairvaux, who had been in his suite, now Cardinal of Albano, as legate of the same Pope, received the submission of various heretical leaders, and, so extensive were his powers, solemnly deposed the Archbishops of Lyons and Narbonne. In 1203 Peter of Castelnau and Raoul were acting at Toulouse on behalf of Innocent III, seemingly with plenipotentiary authority. The next year Arnauld Amaury, Abbot of Citeaux, was joined to them to form a triple tribunal with absolute power to judge heretics in the provinces of Aix, Arles, Narbonne, and the adjoining dioceses. At the death of Innocent III (1216) there existed an organization to search out heretics; episcopal tribunals at which often sat an assessor (the future inquisitor) to watch the conduct of the case; and above all the legate to whom he might make a report. The legate, from his position, was naturally a prelate occupied with a vast number of urgent affairs—Arnauld Amaury, for example, was absent for a considerable time to take part in the General Chapter at Cluny—and gradually more and more authority was delegated to the assessor, who insensibly developed into the Inquisitor, a special but permanent judge acting in the name of the Pope, by whom he was invested with the right and the duty to deal legally with offences against the Faith. And as just at this time there came into being two new Orders, the Dominicans and Franciscans, whose members by their theological training and the very nature of their vows seemed eminently fitted to perform the inquisitorial task with complete success, absolutely uninfluenced by any worldly motive, it is natural that the new officials should have been selected from these Orders, and, owing to the importance attached by the Dominicans to the study of divinity, especially from their learned ranks.