The double-sided work, valued at €15m, depicts Saint Sebastian on its front and optical studies by the Old Master on the reverse

Major surprise was last-minute withdrawal of Goya sketch at Christie's

Tefaf New York proved there is life in the market—can this week's sales do the same?

As forgery cases pile up, auction house is also setting up a scientific research department

Historic Old Masters gallery will open with exhibition around themes of mortality and vanity

As the auction season comes to an end, big brand names keep the market buoyant

From a poetic Claude landscape to Rubens's masterpiece depicting biblical incest, here's our pick of this week's sales

French novel about fictional master forger is being studied by French police for clues

Old Master works by Orazio Gentileschi, Frans Hals and Diego Velázquez drawn into dispute

Recently-discovered Rembrandt, a revamped first floor, the New York editions—and an unfolding authenticity scandal outside the fair—contributed to a buzzy opening

Museums officials have failed to bring anything new to the work on display

All eyes are on Gentileschi’s $25m Danaë, but some other works deserve collectors’ attention too

Work from Hans Holbein’s studio was a highlight of London’s sale season

Pair of buildings depicted in painting identified as Tripe Gate in Delft

Mayfair stalwart gets "new lease of life" in merger with Coll & Cortes

Late 18th-century Vincenzo Chilone regatta scene once owned by John and Anna Jaffé is due to be sold at Christie’s

In their first collaboration, the gallerists are showing 300 works priced from $30,000 to $10m

Six books reveal the multifaceted output of the elder and younger Cranach in Thuringia

Asian buyers were active, but Russians largely absent in a week of mixed results at Sotheby's, Christie's and Bonhams

Part one of a series on Luther’s favourite painter and publicist

Part two of a series on Luther’s favourite painter and publicist

Part three of a series on Luther’s favourite painter and publicist

Works by Rubens and Guardi are due to be auctioned in July to pay for upkeep of country home

National heritage office says the Prado should hand over four paintings for new Royal Collections museum