Complex sentence: The settlement, however, was viewed by many people as being unfavourable to Rome; the Roman historian Cassius Dio wrote that a payout of 200 million Sesterces was paid to the Parthians in exchange for peace.
Split into simpler sentences: The settlement, however, was viewed by many people as being unfavourable to Rome. The Roman historian Cassius Dio wrote that a concession of 200 million Sesterces was rendered to the Parthians in exchange for peace.