Among Plato’s works, Petrizi refers to the dialogues Parmenides, the Laws, Phaedrus, Phaedo and Timaeus. Although he does not mention them, he also quotes Theaetetus and the Symposium (Petrizi, Opera II, pp. 34, 84). Petrizi also mentions various works of Aristotle’s, but not the pseudo-Aristotelian works used by Scholastic philosophers (Iremadze, Konzeptionen, p. 57). It can be gathered from his Interpretation that in addition to the Elementatio theologica he also knew other works by Proclus (for example the Parmenides and Timaeus commentaries as well as the Platonic Theology) and drew on them as he saw fit in commenting on the Elementatio theologica (Iremadze, Konzeptionen, p. 57).