Byzantine Empire thumb|A page of the copy of Simplicius' Commentary on Aristotle's Physics made by Theodora Rhaulaina between 1261 and 1282. Moscow, State Historical Museum, Codex 3649, fol. 221r. The Byzantine princess Theodora Rhaulaina, a niece of Emperor Michael VIII, copied the Physics commentary of Simplicius in the period 1261–1282. This text-critical Codex has been preserved and is now in the Historical Museum in Moscow.Dieter Harlfinger: Some aspects of the handwritten tradition of the physics commentary of Simplicius. In: Ilsetraut Hadot (ed.): Simplicius. Sa vie, son œuvre, sa survie. Berlin 1987, pp. 267–286, here: 267 f. The Byzantine philosopher Georgios Gemistos Plethon († 1452), a Platonist and opponent of Aristotelianism, disapproved of Simplicius' harmonization of Aristotelian and Platonic philosophy. He claimed that Simplicius only undertook this in order to favorably contrast an alleged unity among the pagan philosophers with the disputes among the Christians. However, he did not present anything convincing to support this claim.François Masai: Pléthon et le platonisme de Mistra. Paris 1956, p. 183 f.
Byzantine Empire thumb|A page of the copy of Simplicius' Commentary on Aristotle's Physics made by Theodora Rhaulaina between 1261 and 1282 Moscow State Historical Museum Codex 3649 fol 221r The Byzantine princess Theodora Rhaulaina a niece of Emperor Michael VIII copied the Physics commentary of Simplicius in the period 1261–1282 This text-critical Codex has been preserved and is now in the Historical Museum in MoscowDieter Harlfinger Some aspects of the handwritten tradition of the physics commentary of Simplicius In Ilsetraut Hadot (ed) Simplicius Sa vie son œuvre sa survie Berlin 1987 pp 267–286 here 267 f The Byzantine philosopher Georgios Gemistos Plethon († 1452) a Platonist and opponent of Aristotelianism disapproved of Simplicius' harmonization of Aristotelian and Platonic philosophy He claimed that Simplicius only undertook this in order to favorably contrast an alleged unity among the pagan philosophers with the disputes among the Christians However he did not present anything convincing to support this claimFrançois Masai Pléthon et le platonisme de Mistra Paris 1956 p 183 f