 Gregory’s most important writing by far is his commentary on the first two books of the Sentences. Book I survives in some twenty complete manuscripts, while there are about a dozen for book II. The work was printed several times from 1482 to 1532, reprinted in 1955, and finally received a modern critical edition in six volumes in 1979–84 (Rimini 1979–84; Bermon 2002). Parts have been or are being translated into French, German, and English. The status of Books III and IV is unclear. It has been argued that they never existed and that Gregory chose not to comment on them (Bermon 2002, 274; Mandarella 2016, 198). However, Gregory explicitly says that he will defer the treatment of certain questions to Book III (Girard 2017, 241). In addition to scriptural commentaries, smaller writings have been ascribed to Gregory, including a work usually known as De usura, printed in 1508 and again in 1622 (see below, section 6), and some tabulae of Augustine’s works (see Bermon 2007, 24–25 and Bermon forthcoming). His tract on the intension and remission of forms, De intensione et remissione formarum corporalium, carries the incipit “Circa secundum partem huius distinctionis” and is, therefore, just an excerpt of the Sentences commentary, book I, distinction 17, part 2 (see Loewe 2014, 274). Finally, from his brief term as his order’s prior general we have his correspondence, which has been published (Rimini 1976).