In duos posteriores Ptolemaei Quadripartiti libros absolutissima commentaria
A massive commentary on Quadripartitum III-IV – possibly the largest of all Latin Ptolemaic works – published by Francesco Giuntini (Franciscus Junctinus, 1523-1590) in Lyon in 1581 (reprinted 1583), as part of the second edition of his Speculum astrologiae. The first edition of the Speculum, published in 1573, does not contain any Ptolemaic text. Giuntini’s commentary is based on the Greek text and on Plato of Tivoli’s Latin translation (A.2.1), both of which are reproduced in full. The commentary is preceded by Books I-II in both the Greek text and Joachim Camerarius’s Latin translation (A.2.9), which suggests that Giuntini was not aware of the existence of Gogava’s translation of Books III-IV (A.2.10). One of the sources of the commentary were Ristori’s lectures on the Quadripartitum (C.2.23), which Giuntini attended in Pisa in 1548, as he himself explains: ‘Frater Iulianus Ristorus Pratensis, carmelita, theologus et mathematicus excellentissimus, cum exponeret anno domini 1548 in gymnasio Pisano publice Ptolemaei Quadripartitum, quem ego audivi, et ipso docente multa notabilia excepi, quae scripta sunt in hoc libro’ (ed. Lyon 1581/1583, sig. 126).
‘(ed. Lyon 1583) Francisci Iunctini Florentini theologi et mathematici peritissimi in duos posteriores Ptolemaei Quadripartiti libros absolutiss<ima> comment<aria>. (109-110)
I. Pantin, ‘Francesco Giuntini et les nouveautés célestes’, in Celestial Novelties, Science and Politics on the Eve of the Scientific Revolution, eds P. Boner, D. Tessicini, Florence, 2013, 85-104: 94.