This is interesting ... some excerpts from an item at Bloomberg:

Christie's International said it will sell as much as 74 million pounds ($146 million) of contemporary art in Europe's biggest-ever auction, as sellers flock to London.


Warhol's ``Vesuvius,'' a 1985 image of the volcano, will be offered with a top estimate of 1.5 million pounds by Esposito, who lives in Naples near Mount Vesuvius and was the last person to be painted by the pop artist, Christie's said.

... I didn't know Warhol ever painted a celebrity like Vesuvius, but a quick look through Google suggests he did on more than one occasion (the auction catalog for the above is not online yet).