Pausanias Description of Greece 5.10.8

[8] The sculptures in the front [= east] pediment are by Paionios, who came from Mende in Thrace; those in the back [= west] pediment are by Alkamenes, a contemporary of Pheidias, ranking next after him for skill [ sophiā] in the making [ poiēsis] of statues [ agalmata]. What he [= Alkamenes] had on the pediment is the fight [ makhē] between the Lapithai and the Centaurs at the wedding of Peirithoös. In the center of the pediment is Peirithoös. Next to him on one side is Eurytion [the Centaur], who has seized [ harpazein] the wife of Peirithoös, and then there is Kaineus [= one of the Lapithai], who is coming up to help Peirithoös, and, on the other side is Theseus defending himself against the Centaurs with an axe [ pelekus]. One Centaur has just seized [ harpazein] a girl [ parthenos], another a boy [ pais] in-the-prime-of-youth [ hōraios]. Alkamenes, I think, made [ poieîn] these things this way because he had learned from the verses [ epē] of Homer that Peirithoös was a son of Zeus, and because he knew that Theseus was the fourth [inclusive] generation removed from Pelops.