Commentary Inf XII 64-66

Virgil accords greater authority to Chiron than to the other centaurs. Dante's view of him reflects the fact that he was not sired by Ixion's lust, but by the former Olympian-in-chief: 'Saturn, enamored of Philyra and fearing the jealousy of his wife, Rhea, changed himself into a horse and in this shape begat Chiron, who took the form of a centaur. Chiron educated Achilles, Aesculapius, Hercules, and many other famous Greeks, and Virgil knows at once that, because he is the wisest, he must be the leader of the band' (Singleton's commentary [DDP Singleton.Inf.XII.65]).