Under the National Treasures scheme, 12 UK museums are mounting exhibitions around the loan of masterpieces from the National Gallery

Local heritage group decries the "biennialisation of the city" after gallery paid a fee to stage the Manolo Valdés installation

Plus, the challenges facing the Old Master market and a lithograph by Honoré Daumier

Portrait of Isabel de Borbón was due to go on sale on 1 February

Velázquez masterpiece required 'conservation treatment to minor damage sustained to the painting surface, and the fitting of new glazing' following hammer attack on 6 November

The painting could more than double the Spanish Old Master's auction record when it hits the block at Sotheby's

This week's attack by climate protesters is the third time that the National Gallery masterpiece has been recruited to articulate contemporary social or cultural concerns

Two Just Stop Oil Activists targeted the work as a protest against new UK gas and oil licences, just over a century after the suffragette Mary Richardson attacked the same painting in 1914

Although the artist is best known as the subject of a portrait by his master, a new show at the Metropolitan Museum of Art in New York will shine a light on his life and career

An inspirational teacher, charismatic museum director, Poussin scholar and curator, he was working to the end

A firsthand encounter with the Spanish artist's portrait of Pope Innocent X in Rome puts the later interpretations in perspective

The subjects of great works of art have not always led the romanticised life we imagine, as examples from a new book show

From drawings and paintings by Dürer and Velázquez to lesser known images, book puts servants and slaves centre stage

The hype surrounding major anniversary celebrations saw big turnouts for Bruegel, Leonardo and Rembrandt

We speak to the artist behind the extraordinary Wheatfield work and visit two new shows in the Netherlands. Produced in association with Bonhams, auctioneers since 1793.

Exhibition at the Rijksmuseum reveals both artists as masters of psychology and technique

Two exhibitions to be held at the Rijksmuseum this year will provide a cohesive overview of Rembrandt’s life and work

After conservation effort, Museum of Fine Arts decides its hunch was correct