The historic home in the Italian hills where French first lady Carla Bruni-Sarkozy spent her early childhood is staking a "for sale" sign once again, just months after a Saudi billionaire bought the palatial property for $25 million. Now the buyer, who has since been revealed as billionaire Saudi businessman Prince Alwaleed bin Talal, has relisted the historic castle with an affiliate of Christie's Great Estates with a reported asking price of about 19 million Euros ($28 million).