Williams will not appeal French court decision, citing health reasons

Unrecovered paintings stolen in Frankfurt, 1994.

The opening of a file on James McNeill Whistler, embargoed for a century, reveals him to have been a violent brawler, a racist and a gun-runner

The secret behind Sotheby’s contemporary art sale in New York, 6 May.

Grab and smash operation on 11 November

The reluctant collector: “The ugliest things I ever did see....only good for chasing away ghosts”