Related Clues:

• Throne occupant
• Ontario city
• Male sovereign
• Absolute ruler
• Hadrian, for one
• Napoleon or Nero
• Hopper around a board
• Largest kind of penguin
• Hotel room option
• Augustus, for one
• See 16 Down
• Beethoven's fifth piano concerto, familiarly
• ---
• Ancient Roman ruler
• Caligula, for one