This article offers a detailed presentation of three anonymous, unedited sets of questions on Aristotle’s Physics. The commentaries survive in manuscripts in Oxford, Munich and Sint Agatha. A comparison of the lists of quaestiones suggests that there is a close correspondence between the three commentaries, on the one hand, and the ultima lectura of John Buridan’s Quaestiones super octo libros Physicorum, on the other. Judging from the lists of quaestiones, it makes sense to attach the label secundum Buridanum to all (...) three commentaries. However, the texts of the three commentaries differ significantly both from each other and from Buridan’s lecture. To illustrate the differences, in the Appendix I present editions of one question from Book I of the Physics and one question from Book III from each of the three commentaries. The edited questions correspond with Book I q.4 in Buridan’s ultima lectura, “Utrum in omni scientia ex cognitione principiorum, causarum et elementorum contingat alia sci... (shrink)