Research for a forthcoming exhibition at the Legion of Honor museum has led a curator to add three new entries to Botticelli's oeuvre

As the "unmissable" show opens at the Rijksmuseum we talk to the curators, the museum's director and artist Alvaro Barrington

Organisers of Gallerie d’Italia show have given full attributions to four works on loan from public and private collections in the US and UK

New additions to Old Master's canon go against a recent analysis conducted by Washington D.C's National Gallery of Art

Unveiling of an early 17th-century painting has caused a stir—but what does the evidence say?

The work, which could become the second-most expensive by the painter at auction, failed to sell in 1998

Plus, Joan Mitchell and Claude Monet at the Fondation Louis Vuitton and England's Tudors head to New York

Georgina Adam and Mark Hollingsworth investigate a troubling case of serial reattributions, showing how easily scholarly “opinion” translates into financial fact

A thousand documents and sketches from the Barry Joule collection to be deaccessioned by London museum over attribution doubts

Formerly attributed to “the school of Michelangelo”, experts now say the nude sketch is by the master's own hand

A project led by scientists at Case Western Reserve University uses machine learning to identify a distinctive ‘fingerprint’ in each artist’s way of applying paint

Podcast reveals extraordinary tale that involves the famous writer, the drugs lord Pablo Escobar and a National Football League player, who tried to sell the work at Art Basel in Miami Beach

Publication for Mona Lisa show puts the painting in category of works that are attributed to, or authorised or supervised by the Renaissance master

We often overlook gaps in provenance, or disagreement between experts, simply because we want to believe in fairytales

A scientific analysis and conservation effort unveiled signature brush strokes and other marks of the master

This weighty tome looks at the life and work of the Italian sculptor Giambologna but focuses on the contested bronze

French expert Marc Restellini claims substantial modifications to Italian painter's 1915 portrait of Beatrice Hastings were not mentioned by Christie's when the picture was sold—twice

A recent examination of the wood panel reveals that it is from the same Baltic oak tree as the panel of an authenticated work by the Dutch artist

Restored work—with “Artemisia” signature—will be shown by conservation studio during major National Gallery exhibition

Plus, Canadian First Nations artist Kent Monkman on his Met paintings and the art of food at the Fitzwilliam Museum in Cambridge

The newly attributed work is quite unlike Van Gogh’s other 35 self-portraits and reveals an intriguing insight into his mutilated ear

We look back at the stories that have overturned the art world order this year

The still life in Switzerland’s Reinhart collection was dismissed as a forgery

The Madonna and Child at National Museum Cardiff was believed to be a copy

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

We can also reveal that the $450m painting is described in the latest insurance documents as “attributed to” Leonardo rather than as a definitive autograph work

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

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

Part of the Wellington Collection in London, the picture was originally believed to be by a minor north Italian artist