PHILADELPHIA was the only Pergamenian foundation among the Seven Cities. It derived its name from Attalus II., 159–138 B.C., whose truth and loyalty to his brother Eumenes won him the epithet Philadelphus. The district where it was situated, the valley of the Cogamis, a tributary of the Hermus, came into the possession of the Pergamenian King Eumenes at the treaty of 189. From that time onward the district was in the heart of the Pergamenian realm;
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