Related Clues:

• Grand duke's father
• Chief exec.
• Mogul
• Winter Palace ruler
• Bill Gates, e.g.: Abbr.
• Nicholas I or II
• Business bigwig
• Ivan the Terrible, e.g.
• Business big
• Honcho
• Industry magnate
• Corp. kingpin
• Capt. of industry
• Bygone ruler
• Head of a board: Abbr.