[Verginius Rufus]

Phrygia may have been under Lydian rule in the reign of king Croesus, just before the Persian conquest of Asia Minor, but the Phrygians and Lydians are quite distinct. Both spoke Indo-European languages, but Lydian was related to the languges spoken in Anatolia in the second millennium BC (Hittite, Luwian, and Palaic), whereas Phrygians invaded later from the Balkans--their language was closer to Greek than it was to Lydian.

Homer has Phrygians in Asia Minor already at the time of the Trojan War but that's probably a mistake. Even Homer nods...

[SunkenCiv]

Homer was right on the money. Phyrgians, plus the Nubian pharaoh, among other things (all consistent within Homer, and he is after all the only source for the story that survives and isn’t derivative of it), show the correct date of the Trojan War. It’s a narrow window, too, because the Phrygians crossed from west to east into Anatolia, established themselves for just a few generations, then were ended as a realm by the Cimmerians, who burned the capital.