Icon’s first major intervention since 1931 brings back original colours
Leading scholar says gallery's own curators believed Madonna Litta to be by Boltraffio, a pupil of the master
Worcester Art Museum argues for reattribution of altarpiece panels by Verrocchio’s workshop
The art historian suggests that Velázquez's former slave may have painted two works in the show
Herrick Gallery is marketing two pastels and eight drawings said to be by the Irish-born artist
If it turns out to be real, it would be the biggest discovery of the artist’s work in almost 25 years
Madrid museum still allows The Haywain to be centrepiece of blockbuster show in artist’s home town
Temptation of St Anthony in the Nelson-Atkins Museum was believed to be by a pupil of the great Dutch artist
Work featured on BBC’s Fake or Fortune programme in 2011
Project to mark 500th anniversary of artist’s death upgrades Infernal Landscape to an authentic work
As the appreciation of street art rises (as do its prices), attribution becomes critical
Proof of changes to the composition increases scholarly support
Fallout from Leonardo case sees London dealers locked in legal dispute
New research poses more questions than answers over possible attributions for items that were withdrawn from March sale
Tate director Sir Nicholas Serota says no, but the director of the Berlin Gemäldegalerie, among others, believes it is
Neither will the National Gallery’s Ambassadors which was judged too fragile to travel across London
After its showing in New York, Baron Rolin’s “Young woman at a virginal” has been accepted as plausible enough to be included in the London stage of the exhibition, but some scholars have yet to be convinced
The Joule archive drawings continue to cause contention
“Trompe l’oeil: to fool the eye and to challenge the appraiser” is on in New York
Defendants' story was "reasonably possibly true"
While there is some support for its attribution, doubt still lingers
Leonardo da Vinci showdown comes to the National Gallery of Scotland