Commentary Inf XIII 130-135

The relatively minor figure we now encounter, a cespuglio (bush) and not the gran pruno (tall thorn-bush -- [Inf XIII 32]) that holds the soul of Pier delle Vigne, complains against the unintentional despoiling of his leaves by the exhausted Jacomo, who had huddled up against him in order to escape the pursuing hounds. Various of the early commentators identify him as either Lotto degli Agli or Rocco de' Mozzi (for review see DDP Berthier.Inf.XIII.151; and for reasons to believe it is the latter who is referred to see Presta [Pres.1972.1], pp. 19-20), yet some of these commentators also suggest that Dante left the name 'open' because so many Florentines committed suicide in this way that he wanted to suggest the frequency of the phenomenon in his native city.