Project icon: lavishly furnished initial letter with a painting of Ptolemy using an astrolab.

Ptolemaeus Arabus et Latinus

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Parma, Biblioteca Palatina, 984

s. XV.


probably northern Italy.


‘D<omini> Ioannis Gregorii filii …ur (?) Ioannis Antonii Leverati (?) Genuensis [Genoa]’ (f. 1r, 16th-c. hand); ‘Clarissimo arcium et medicinae doctori d<omino> m<agistro> Iohanni ex Rubeis maiori suo observan<dissimo?>. Genuae [Genoa]’ (f. 144v, late-15th or 16th-c. hand). A Johannes de Rubeis of Parma was physician to Jean sans Peur, Duke of Burgundy, and author of annual prognostications, two of which are extant for the years 1420 and 1421, but the note is probably too late to apply to him.

Paper, 145 f., two hands (f. 1-130 and 134v-144r), with additions by a somewhat later hand f. 144v-145r.

Astronomy: Campanus of Novara, Theorica planetarum (1r-44v); Pseudo-Thebit Bencora, De motu octave spere (47r-49v); Ptolemaica (50r-52r); Thebit Bencora, De recta imaginatione spere et circulorum eius diversorum (52v-53v); Thebit Bencora (?), De quantitate stellarum et planetarum et proportione terre (54r-55v); Thebit Bencora, De imaginibus (55v-56r, beginning only, with text crossed out); Blasius of Parma, comm. on Sacrobosco’s De sphera (56r-81v); Cecco d’Ascoli, De eccentricis et epicyclis (82r-85r); ‘Super theoricas planetarum aliquas demonstrationes…’ (87r-103v); Ptolemaica (106r-115r); Pseudo-Messahallah, De compositione astrolabii (115r-130v); Leonard of Cremona, Descriptio cosmographie in plano (134v-144r); astrological notes (145r). Blank: 45r-46v (except for an incomplete astronomical diagram f. 46r), 85v-86v, 104r-104v, 131r-134r, 145v.


F. S. Benjamin, G. J. Toomer, Campanus of Novara and Medieval Planetary Theory, Theorica planetarum, Madison-London, 1971, 81-82.


‘Incipit liber quem edidit Thebit filius Chore de his que indigent expositione antequam legatur Almagesti. <E>quator diei est circulus maior qui describitur super duos polo (!) orbis ― aut propinqui oppositioni erunt retrogradi. Finis.’

= Thebit Bencora, De hiis que indigent expositione antequam legatur Almagesti (C.1.1). No glosses.


‘De utilitate astrolabii liber nonus (title added in upper margin by another hand). [translator’s preface] <Q>uemadmodum Ptholomeus et ante eum nonnulli veteris auctoritatis viri antiquas scribunt hystorias… (106v) [text] Sit possibile, Iesure, et plerumque necessarium ut in plano represententur circuli in speram corpoream incidentes —cum ipsis circulis tropicis et cum circulis meridianis signa distinguentibus. [maslama’s extra chapter] <C>apitulum quod non est de libro quod edidit Abualcatim Maslem filius Ameti. Dixit Maslem filius Ameti: Iam rememoratus est Ptolomeus in hoc libro — tibi quod volueris de scientia tabularum. Finis. Laus Deo.’

= Ptolemy, Planispherium (tr. Hermann of Carinthia) (A.6.1), Class II. Translator’s preface, 106r-106v; text, 106v-114r; Maslama’s extra chapter, 114r-115r. No glosses. This MS is wrongly referred to as ‘Parma 954, 15c, ff. 106r-155r’ in P. Kunitzsch, R. Lorch, Maslama’s Notes on Ptolemy’s Planisphaerium and Related Texts, Munich, 1994, 35.