BUM was created just before Boty died of cancer aged 28 in 1966

Franz von Stuck’s portrait of two girls was due to be sold at Van Ham

Our pick of highlights from upcoming auctions

Local rivalry between Düsseldorf and Cologne was put to bed as the inaugural fair opened

Aboriginal work, Earth’s Creation I, was shown at the 2015 Venice Biennale

Capping an epic week of auctions, solid results featuring records for female artists and a Ferrari bode well for market's future—so long as it doesn't overheat

Dorotheum sale piques interest, pre-empting centenary of the artist’s death next year

Despite buy-ins, the sale saw several strong prices and records below the dizzy height of $450.3m for Leonardo da Vinci's Salvator Mundi

Price makes it the most expensive painting of all time

In a city of artists but few collectors, an overhauled fair hopes to drum up trade against competition from established Art Cologne and a new Düsseldorf event

New York sale results boosted by strong Asian and Russian buying, and shored up by guarantees

Where a museum's Rockwells had sparked interest in a flagging category, the removal of key lots from the sale dampened spirits

Painting is being presented by Christie’s as the “Holy Grail of Old Master paintings”

Pre-auction assessment offers evidence that painting is original Leonardo but also reveals problems posed by painting’s wooden panel

Salvator Mundi will break Old Master auction record as seller dispute rumbles on

Van Ham to offer Franz von Stuck portrait in 17 November sale

Auctioneer Claude Aguttes will sell the collection of historic books and manuscripts across 300 sales over at least six years as part of liquidation

Pent-up demand for top material kicks off New York's key auction week, with a $81.3m Van Gogh and records for Léger, Magritte, Man Ray and Vuillard

Our pick of this month's most interesting auctions

Proceeds from Berlin sale, which also includes works by Rosemarie Trockel and Tomás Saraceno, will benefit Kayany Foundation

The octogenarian artist is in ascendance, with a solo show opening at the Serpentine later this month

Discretionary sellers gain confidence in the market and Christie's leads its contemporary sale with Da Vinci—but recent overreaches sound a cautionary note

The successful Hail Mary pass came just before deaccessioned works, including two paintings by Norman Rockwell, were due to be auctioned at Sotheby’s on Monday

Art dealer Thaddaeus Ropac and curator Maya Allison tell us how the nation’s creative ambitions have blossomed. Plus: Silver Lion-winning musician and artist Hassan Khan on his Abu Dhabi Art performance

Our pick of highlights from upcoming auctions

Some dealers at the fair report brisk early business but say big sales are a waiting game

Art021 and West Bund Art & Design fairs open as galleries, fairs and museums move in on city's fast-growing art scene

The New York Times reports that multiple women who worked with him said he made sexual comments and touched them inappropriately

Is the UAE now the art capital of the Middle East?

The Salon Art + Design fair returns to the Park Avenue Armory for its sixth year this month