Related Clues:

• 4-Down, e.g.
• Despot of old
• Deposed despot
• Francis, e.g.
• Many a pope
• Industrial mogul, e.g.
• More out there
• Commercial bigwig
• Pre-1917 monarch
• Father of a grand duke
• Romanov title
• Holy man
• Industry kingpin
• Valentine, for one
• Peter I, e.g.