Art dealer did not pay up for painting bought at auction in 2017

Real estate developer Bruce Toll claims compensation after French High court confirms return of Pissarro's Pea Harvest to heirs of collector Simon Bauer

A painting by Rodney Jackson was removed from an exhibition focusing on racial justice issues at the request of Miami Beach officials

A handyman allegedly stole works on paper from the artist’s stepdaughter over three years, before they were discovered in the possession of the owner of Belle et Belle gallery

New racketeering suit against the disgraced New York art dealer, brought by a Spanish collector regarding paintings by Picasso and Léger, gets off to a mixed start

Around 170 more arbitrators and mediators appointed to court panel which aims to increase expertise and impartiality

Lawyer Petra Warrington on how to protect your business if you are holding online auctions, exhibiting and selling works on Instagram, or entering into sale contracts by email

The former husband of heiress Petra Ecclestone denies any criminality and says he will contest all charges

American Image Art founder alleges certain works are in the public domain and cannot be copyrighted

The decision follows a similar ruling made last July in which the estate’s counterclaims of non-payment of royalties and unauthorised reproductions were dismissed

Dos Santos and her husband Sindika Dokolo own around 3,000 works by artists including William Kentridge and Zanele Muholi

Recently rediscovered 18th-century work by artist Joseph Wright of Derby was bought by the Los Angeles museum in March last year

Bruce Munro claims the Fairchild Tropical Botanical Gardens intentionally imitated his works for its festive event known as The NightGarden

Pierre Le Guennec and his wife Danièle hoarded 271 works for 40 years

Matthew Green owes the firm around £3m, according to legal documents filed by the peer-to-peer lender

Appeals court says that guidelines limiting number of sellers in four green spaces are constitutional

Social media giant pays out after closing French teacher's account for posting photo of the Origin of the World

Catalogues raisonnés emerge as the latest front in the battle to authenticate works and secure market value

Eric McNatt files lawsuit over artist’s reproduction of a portrait of rock musician Kim Gordon

Pierre Le Guennec changes his story claiming artist's wife gave him 271 works in rubbish bag

Heirs of Greta Moll are demanding London museum returns painting of their grandmother

Judge's findings reveal what to look out for in art transactions

The legislation, sponsored by presidential hopeful Ted Cruz among others, comes as the race for the US election heats up

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

Seven of 11 specialists named by the gallery say they never authenticated work that turned out to be a forgery

Eleanore De Sole said she went into a “shaking frenzy” when she read that another work sold by Knoedler was suspected to be fake

Domenico De Sole bought a fake Rothko from the gallery in 2004

Lawyers for the collectors and the gallery go head-to-head as one of New York’s biggest art world scandals goes to trial