Related Clues:

• Ruler, once
• The last was Nicholas II
• Loser of 1917
• Title derived from 'Caesar'
• Shah : Iran :: ___ : Russia
• Ivan or Feodor
• 1917 abdicator
• Ruler of the past
• Fabergé Egg collector
• Alexandra's Nicholas, for one
• ___ bomb (nickname of the largest nuclear weapon ever detonated)
• Authoritarian
• Russian Revolution victim
• An anagram for "rats"
• Turn-of-the-century Russian ruler