Lawyers for the auction house are trying to dismiss the complaint, which they call 'devoid of factual allegations,' but they could be facing a classic Catch-22.

Expert from a French collecting dynasty saw first-hand the fast-changing art world of the 1960s and helped British Rail create its renowned collection

Our pick of the highlights from coming fairs and auctions

Drahi bought Sotheby’s less than three years ago, took it private and began implementing a series of cost-cutting measures

The firm’s sales were bolstered by a sharp increase in online bidders, who accounted for 92% of all bids this year

The south Florida town, awash with ultra-wealthy retirees, has seen a rise in art market power players since the start of the pandemic

The larger than life-size statue was brought back from Rome by the Duke of Hamilton in the 18th century and is named after his Scottish palace

The auction house also accepted cryptocurrency on two works by Banksy and sold a rare copy of the US Constitution for $41m

While the auction's star lots included the $34.9m Kahlo and four Monets, the most aggressive bidding was on works by Alexander Calder and Pierre Soulages

Bidders from Asia snapped up the sale’s two biggest lots, trophy works by Giacometti and Rothko

The auction house made Banksy's world record for the pre-shredded work Love is in the Bin

Will the wave of young Asians buying hot young artists also wash into the higher-priced, blue-chip artists on offer in New York, or has older art lost its charm?

Counterculture relic originally design by Hells Angel artist Allan "Gut" Terk sold for nearly $18,000

Hitting the block at Sotheby's next month, Diego y yo (Diego and I), painted in 1949, could become the most valuable Latin American work ever sold at auction

Led by Yuki Terase and Amy Cappellazzo, the company aims to have firm footing in both Western and Asian markets.

Asian collectors were behind much of the high bidding for hot emerging artists including Jadé Fadojutimi, Ewa Juszkiewicz and Flora Yukhnovich

A previous painting called Girl with Balloon was shredded live at a Sotheby's auction three years ago, the resulting work, Love is in the Bin, has now sold

As work heads back to auction at Sotheby's, the provenance of the street artist’s Girl with Balloon is being questioned

Millennial buyers boosted sales for Western artists, whose works accounted for $114m out of $185m

Auction house will sell the painting in January and is dubbing it "The defining masterpiece of Botticelli's late career". But what exactly does that mean?

A luxuriant still-life painting of gladioli flowers should sell for over $10m

Attorney general claims the auction house created and used tax exemption certificates that falsely presented the buyer as an art dealer in order to dodge payments. Sotheby's says it will continue to contest the case

The sale of the New York dealer, who died earlier this year and was once a vocal critic of auction houses, will feature works from the 14th to 20th centuries

Auction house will sell the 65 works, including $70m works by Rothko and Giacometti, in two standalone sales in November and next May

Our pick of the highlights from this month's fairs and auctions

Work went viral in 2018 when it shredded during the sale at Sotheby’s

Horowitz's new position will see him increasing Sotheby's collaboration with galleries and art dealers

The London-based dealer of four decades is downsizing and having a 200-lot sale of contemporary art, Modern furniture, ethnographic art and antiquities

The works, chosen by casino mogul Steve Wynn, will be auctioned as the entertainment group MGM Resorts moves to focus its art collection on "diversity and inclusion"

Proceeds from exhibition will go towards funding the monumental Paris project