Related Clues:

• Fox drama
• "Star Wars" group
• Peer's title
• Persia, e.g., once
• Ottoman, for one
• Magnate's holdings
• Old Rome, e.g.
• Vast dominion
• "Star Wars" villains
• Number of countries ruled by one
• Domain ruled by an emperor or empress
• Group of countries under a single authority
• Group of countries under single authority
• Large group of states
• Group of countries ruled by single supreme authority