Suetonius, Claud. 25.3 has preserved the summary of an obscure Roman letter to Seleucus Rex, offering him amicitia et societas in return for exempting the citizens of Ilion, their own ‘relatives’, from taxation. While previous generations of scholars had been inclined to reject this letter as a forgery (esp. HOLLEAUX 1921), more recently, its authenticity has been claimed, and the king been identified with Seleukos II Kallinikos (RIZZO 1974; GRUEN 1984), Seuleukos III Keraunos (GRAINGER 2002) or Antiochos III Megas (ERSKINE 2001). But neither Seleukos II nor III seems to have exerted effective control over Ilion to qualify. In the case of Antiochos III, he can be shown to have become an amicus populi Romani probably in 200 BC. Rome was then...