Commentary Inf IV 113

On the meaning and importance of Dante's word autorità, as well as the distinction between auctores (those who add to previous knowledge and tradition) and autores (those who have authority in themselves and in what they do) in Uguccione of Pisa, recapitulated in Conv.IV.vi.3-5, see Mazzoni (Mazz.1965.1), pp. 168-170.