Related Clues:

• Alexandra's husband (Var.)
• Male monarch (Var.)
• Parsley or sage, e.g.
• Boris Godunov, for one (Var.)
• Simeon I, for one (Var.)
• Sarsaparilla, for one
• Peter or Paul, e.g. (Var.)
• Marijuana, slangily
• Ruler of yore (Var.)
• Parsley or bay leaf
• Word derived from 10-Down
• Ruler opposed by the Bolsheviks
• Peter or Nicholas
• Russian monarch, once (Var.)
• Royal Russian (Var.)