Related Clues:

• One past due
• Roma's hill count
• Certain numero
• Un numero
• Number of hills of Rome
• 'Uno' + 'due'
• Low numero
• Three, in Italy
• A third of nove
• 24-Down, across the Alps
• Card below quattro
• Three, in Pisa
• Crowd in Cremona?
• Number of coins in the "fontana"
• "Uno, due, ---"