“The Asiarch was the head of the Commune Asiæ, the confederation of the principal cities of the Roman province of Asia. As such, he was the ‘chief priest’ of Asia, and president of the games” (Lightfoot, ibid. p. 967; on p. 987 ff. of the same volume, Lightfoot discusses the Asiarchate at considerable length). The Asiarch Philip mentioned here was a Trallian, as we learn from a statement toward the close of the epistle, which Eusebius does not quote; Lightfoot identifies him with a person named in various Trallian Inscriptions.