 The Attalid kings of Pergamon (now Bergama) later ceded Mysia, including the territory of the Troad, to the Roman Republic, on the death of King Attalus III in 133 B.C.Under the Roman Empire, the territory of the Troad became part of the province of Asia, and later of the smaller Mysian province Hellespontus; it was important enough to have suffragan bishoprics, including Pionia (now Avcılar).Under the later Byzantine Empire, it was included in the "thema" of the Aegean Islands.