Revided from -POLIS

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Across
  1. 1. Hadrian's city
  2. 4. Seuthes' city
  3. 8. group of four cities
  4. 9. city of the dead
  5. 10. group of twelve cities
Down
  1. 2. group of eight cities
  2. 3. Ohio, United States
  3. 5. a group of three cities
  4. 6. Quebec, Canada
  5. 7. High city