A Saudi prince has been revealed as the buyer of the world's most expensive painting, priced at a staggering $450 million in an auction at the world-famous Christie's Auction House in November. Prince Bader bin Abdullah bin Mohammed bin Farhan al-Saud has been identified as the mystery buyer of Leonardo da Vinci's "Salvator Mundi," according to a New York Times report published Wednesday. Prince Bader, part of a distant branch of the wealthy royal family, is not generally known as a major art collector or someone with a large source of wealth.The painting is expected to arrive at the Louvre in Abu Dhabi, United Arab Emerites.