Related Clues:

• Bloodline
• See 39-Across
• Empire
• Stengel's Yankees, e.g.
• Franz Josef I and Haile Selassie
• Shang or Xia
• The Carrington saga
• TV's Carrington saga
• Butterflies with crowned heads
• Augustus et al.
• Big wheels
• Family rule
• One of an Egyptian 30
• Nero and Napoleon
• Some moths and penguins