Boeotians were expelled from Thessaly after the Trojan war although there are three traditions which disagree on how expulsion played out. One tradition says that the Boiotoi were expelled by the Thessalians who were led by Thessalus, son of Aiatus, son of Pheidippus, son of another Thessalus. Pheidippus appears in the Catalogue of ships as one of the commanders of the force from Cos and Carpathus. He was thought to have been driven to Epirus after the war and to have settled at Ephyra in the Thesprotid. Hence the Boiotoi were expelled two generations after the Trojan War. Hellanicus is probably the source of this tradition, and the source of Thucydides' "sixtieth year," that is, two generations of thirty years. A second tradition puts the expulsion of the Boiotoi in the reign of Aiatus, one generation after the War. To this should also belong the story in Plutarch, which tells how Opheltas king of the Boiotoi took Chaeronea "by force from the barbarians." Opheltas is the son of Peneleus, one of the leaders of the Boeotian contingent in the Catalogue, and living one generation after the War. It is not until the reign of Damasichthon, son of Opheltas, that control of Thebes was gained by the Boiotoi. Hence in this tradition one generation after the War, the Boiotoi were expelled and western Boeotia was invaded; two generations after the War, Thebes was won. A third tradition combines the other two: the two generations until the expulsion from Thessaly after the War and the two generations until Thebes is gained give the four generations cited by Hieronymus in his tale of the Cadmean return to Thebes after the War.