Between the fifteenth and sixteenth centuries, the works of other, more ancient commentators on Aristotle were also adopted: those of Alexander of Aphrodisias and Simplicius were particularly popular, the first because of its radical mortalism, the second for its Neoplatonic and conciliatory tendencies. The rediscovery of the ancient commentators was accompanied by an increasing reliance on the Greek texts in universities, despite the enduring predominance of medieval Latin material. New commentaries also appeared alongside the ancient ones: practically all of the most prominent professors composed their own commentaries to the Aristotelian natural texts, in particular between the sixteenth and seventeenth centuries. Usually these commentaries followed the texts according to the Averroistic divisions, but sometimes they were organized in quaestiones.