Ambrosiana C 263 inf. 
16th 
Astronomy 
Ptolemy, Symeon Seth, Heliodorus, Theon 
Ambrosiana H 57 sup. 
14th 
Astronomy 
Theon, Ptolemy, John Philoponus 
Ambrosiana R 107 sup. 
16th 
Astronomy, Mathematics, Geometry 
Theon, Maximus Planudes 
BAV Ott. gr. 26 
16th 
Astronomy 
Theon, Ptolemy 
BAV Pal. gr. 137 
14th, 15th 
Astronomy 
Theon, Ptolemy, Aratus 
BAV Pal. gr. 303 
16th 
Theology, Mathematics 
Theon, Gregory Nazianzus 
BAV Pal. gr. 53 
16th 
Rhetoric, Mathematics 
Hermes, Eusebius of Caesarea, Theon, Maximus of Tyre, Eunapius 
BAV Vat. gr. 1059 
15th 
Astronomy, Geography 
Proclus, Ptolemy, John Philoponus, Maximus the Confessor, Theon 
BAV Vat. gr. 1295 

Geometry 
Euclid, Theon 
BAV Vat. gr. 184 
13th 
Mathematics, Astronomy 
Maximus Planudes, Theon, Ptolemy 
BAV Vat. gr. 190 pt.2 
9th 
Geometry, Astronomy 
Euclid, Theon, Ptolemy 
BAV Vat. gr. 198 
14th 
Mathematics, Harmonics 
Nicomachus of Gerasa, Ptolemy, Porphyry, Manuel Bryennius, Theon, Proclus 
BAV Vat. gr. 221 
16th 
Harmonics, Music 
Ptolemy, Porphyry, Theon, Euclid 
BAV Vat. gr. 304 
14th 
Philosophy, Astronomy, Mathematics 
Theodore Prodromos, Theon, Diophantus, John Philoponus, Ptolemy 
BAV Vat. gr. 321 
14th 
Philosophy, Mathematics 
George Pachymeres, Theon, Maximus Planudes 
Biblioteca Angelica gr. 101 
15th, 16th 
Philosophy, Mathematics, Music 
Plato, Theon, Plutarch 
BML Plut. 28.07 
14th 
Astronomy 
Theon 
BML Plut. 28.12 
14th 
Mathematics 
Theon 
BML Plut. 28.18 
10th 
Astronomy 
Ptolemy, Theon 
BML Plut. 28.26 
9th, 10th 
Astronomy 
Theon 
BML Plut. 28.48 
11th 
Astronomy 
Proclus, Theon 
BML Plut. 55.10 
15th 
Rhetoric 
Theon 
BN Coislin 338 
15th 
Astronomy 
Theon, Ptolemy, Nicephorus Gregoras, John Philoponus 
BN Grec 2013 
16th 
Mathematics, Geometry 
Theon, Euclid 
BN Grec 2014 
16th 
Mathematics 
Theon 
BN Grec 2353 
16th 
Geometry, Optics, Mathematics 
Maximus Planudes, Theon, Ptolemy 
BN Grec 2390 
13th 
Mathematics, Astronomy, Optics 
Ptolemy, Theon, Euclid 
BN Grec 2394 
18th 
Astronomy 
Ptolemy, Proclus, John Philoponus, Theon 
BN Grec 2396 
14th 
Astronomy 
Theon, Ptolemy 
BN Grec 2398 
15th 
Astronomy 
Pappus, Theon, Ptolemy, Nicholas Chamaetos Kabasilas 
BN Grec 2399 
13th, 14th 
Astronomy 
Theon, Ptolemy 
BN Grec 2400 
16th 
Astronomy 
Theon, Ptolemy 
BN Grec 2403 
13th 
Misc., Philosophy, Astronomy, Poems 
Theon, Proclus, John Tzetzes, Lycophron, Pindar, Homer 
BN Grec 2406 
16th 
Astronomy 
John Pediasimus, Cleomedes, Theon, Ptolemy, John of Damascus 
BN Grec 2450 
14th 
Harmonics, Mathematics 
Ptolemy, Nicomachus of Gerasa, Theon 
BN Grec 2491 
14th 
Astronomy 
Ptolemy, Theon, John Philoponus, Ammonius 
BN Grec 2492 
14th 
Astronomy 
Ptolemy, Theon, John Philoponus 
BN Grec 2493 
16th 
Astronomy 
Ptolemy, John Philoponus, Nicephorus Gregoras, Theon, Ammonius 
BN Grec 2497 
13th, 14th 
Astronomy 
John Philoponus, Proclus, Theon, Ptolemy 
BN Grec 2842 
15th 
Astronomy 
Aratus, Theon, Theodore of Gaza 
BN Grec 2863 
15th, 16th 
Epigrammata, Geometry, Astronomy 
Euclid, Theon, Hermes, Theognis 
BN Supplément grec 336 
16th 
Philosophy 
Proclus, Theon 
BN Supplément grec 450 
15th 
Philosophy, Mathematics 
Nicomachus of Gerasa, Theon, George Pachymeres, Ptolemy, Theophrastus, Porphyry, Proclus 
BR BPG 78 
9th, 10th, 12th, 13th, 14th 
Astronomy 
Theon, Ptolemy 
British Library Add MS 10971 
16th 
Mathematics 
Theon 
BS Cod. graec. 403 
16th 
Mathematics, Philosophy 
Theon, Proclus, Michael Psellus 
BS Cod. graec. 419 
14th 
Philosophy, Astronomy 
Nemesius, Proclus, Ptolemy, Porphyry, Theon 
BU 2293 
16th 
Geometry, Mathematics 
Proclus, Euclid, Theon 
HAB Gud. gr. 37 
16th 
Geometry, Optics 
Euclid, Theon 
Marciana gr. Z. 314 
15th 
Astronomy 
Ptolemy, Porphyry, Theon 