 According to the letter, then, Gregory first studied theology at Paris from 1322 or 1323 until 1328 or 1329. Working backwards, we can estimate that Gregory was born in Rimini around 1300, joined the mendicant order of the Hermits of Saint Augustine (OESA), and received his basic education before going to Paris. There he was exposed to the latest developments in philosophical theology, especially the ideas of the Franciscan Peter Auriol, who had died in early 1322. Assuming that the sequence in the papal letter is strictly chronological, Gregory then taught theology at various Augustinian studia in Italy, first at Bologna, where he is attested as lector in documents of late 1332, 1333, and early 1337. Perhaps he was transferred to Padua at the Augustinians’ General Chapter meeting in Siena in 1338, and then he was shifted to Perugia. Almost certainly while he was in Italy, Gregory came into contact with the works of Oxford scholars from the 1320s and 1330s, most notably William of Ockham, Adam Wodeham, Richard Fitzralph, and Walter Chatton. Pope Clement’s letter suggests that Gregory returned to Paris in late 1340 or in 1341 in order to lecture on the Sentences, but perhaps the “four years” refers to the date of his order’s General Chapter of Montpellier, 1341, which may have been the occasion when Gregory was assigned to return to Paris. The prevailing view is that Gregory went to Paris in 1342 for a year of preparation for his lectures on the Sentences, which were given in 1343–44, but given that our records of these lectures were subject to revision, there is a degree of uncertainty. With help from the pope’s letter, Gregory probably became Master of Theology in 1345, holding at least one quodlibetal disputation at Paris, but he continued to revise his written Sentences commentary until 1346, removing certain passages that were formerly considered later additiones. In late 1346 Master Gregory was in Rimini and the following year we find him teaching again in Padua, where he stayed until 1351 when the General Chapter at Basel sent him to teach at the recently established studium in Rimini. He remained there at least until late 1356, but on 20 May 1357, at the General Chapter in Montpellier, he was elected the Augustinians’ prior general, succeeding the late Thomas of Strasbourg. Gregory died in Vienna toward the end of 1358 (see V. Marcolino’s chapter in Oberman 1981, 127–94; Lambertini et al. 2002; Delucca 2003).