French customs officials have barred the return of Saint Cosmos to the US following its inclusion in a show at the Jacquemart André Museum in Paris

Exhibition on rediscovered 17th-century artist, which includes rare loans, is due to open in London in April

The stigma around state museums selling works means that other institutions dare not buy them; and a frank review of the National Gallery's Leonardo exhibition

Part one focused on early years of Old Master's career will be published in 18 months

Exhibition at Palazzo Madama promises an impressive number of works—and a fresh view of the Renaissance master's legacy

December auction generates less than half the total of last year's sale, with several lots failing to sell

Auction raised more than last year but supply still limited as Brexit-dominated general election looms

From a miracle scene seized by Nazis to a pensive painting by Joseph Wright of Derby, our pick of highlights from this week's auctions and fairs

Painting depicting the Holy Family in an evening landscape has been owned by a Manhattan family for more than 60 years

Work depicting Roman heroine Lucretia was in a private collection for 40 years

High price for painting at Christie’s in New York last week is prompting speculation but expert says his money is on Isaac de Jouderville

Attempting to capitalise on the crossover collecting trend, the fourth edition of the Dutch fair brings in Modern and contemporary art to complement its historical focus

Rediscovered painting, found in a French house clearance, is the first work by the 13th century Florentine artist to be sold at auction in living memory

Research project conducted by Alte Pinakothek reveals how the Flemish painter developed and reworked his canvases

Forthcoming exhibition on the Renaissance master reveals ground-breaking new research on Italian literary sources

Survey at the Grand Palais aims to distance itself from the stereotypes usually associated with the artist

The work, previously unknown to scholars, was until now in a private ducal collection

First survey in the Netherlands puts the spotlight back onto the ‘other’ Golden Age painter

Preparatory sketch for The Triumph of Caesar will go on sale in New York in January

Painting of Lucretia has been in a private collection in Lyon for the past 40 years and is estimated to sell for over €600,000

Speculation remains over whether Salvator Mundi will appear

Panel depicting the Mocking of Christ will go on sale at French auction house, in collaboration with Eric Turquin, in October

Exhibition will bring together Vienna museum’s collection with key loans from European institutions, as well as unveiling a raft of new theories

Suspect has been jailed in northern Italy over case that has embroiled major international museums and dealers

Painting will be exhibited at Frieze Masters next month, after a "style of Botticelli" sleeper sold for over £6m at Zurich auction in June

As the Tate Britain show opens, we reveal the inside story of the Tate’s failure to acquire 19 watercolours from a portfolio that turned up in a Glasgow bookshop

The Finding of Moses, currently on loan at the London museum, is owned by sofa-billionaire Graham Kirkham

We look back at the women who were written out of art history with National Gallery curator Letizia Treves, Patricia & Phillip Frost Art Museum director Jordana Pomeroy and artist Helen Cammock

The 16th-century Virgin and Child with Saints is now back on show