GUIDO de SUZARIA. — Jurist, belonging to the group of the post-glossators, probably born at Suzara (Mantua) on an uncertain date: he lived between 1260 and 1292 and was successively professor at Modena, Padua, and Bologna, councillor to Carlo d'Angiò, and again professor at Reggio Emilia and Bologna, where, it seems, he died. He was the teacher of Giacomo de Arena, Guido da Baisio, and Alberto Gandino. He was proposed for the bishopric of Turin, but was excluded, apparently because of his married state, although, as far as can be ascertained, it was only a ratified marriage.
He wrote a commentary on Gratian’s Decretum (De primo et secundo decreto), published in the collection Tractatus universi iuris (III, II, ff. 136v–39v [the work, however, is disputed as his]); glosses, additions to the Glosa of Accursius, other glosses on the Digestum vetus, and Additions ad Summam Azonis. Diplovataccio cites commentaries on the Digestum vetus and novum; Giovanni Andrea speaks of Quaestiones statutorum.
He also wrote various legal treatises, including: De ordinatione causarum (in Tractatus ex universi iuris interpretibus collecti, IV, Lyon 1549, f. 21 ff.); De testibus (ibid., X, f. 85 ff.); De tormentis et quaestionibus (in Tractatus universi iuris, XI, I, f. 241 ff.); De iure emphiteutico (ibid., VII, f. 185 ff.); Tractatus gravantigie secundum morem civitatis Tuscie (ibid., VI, II, ff. 338v–339v). The last-mentioned treatise is disputed as his (cod. Ott. lat. 1726, ff. 65v–70v, attributes it to a “de Aguglionibus de Florentia”), or at least is considered interpolated.