As Tate Britain opens a major travelling retrospective, we examine the factors underpinning the meteoric rise in prices for the artist’s work and reveal the identity of his biggest collectors

Several sculptures premiered at Art Basel

Eleven-year dispute has been settled out of court

Mr Arm, who previously contested his sister's will, now asks that part of the estate goes to auction

The works up for grabs range from jewellery to mobiles

The Foundation has settled a long-running battle over rights

In accordance with the president of the Foundation's emphasis on turning over a new leaf, none of the Association's members have been elected to the board

Roland Dumas and Jacques Tajan face accusations of abuse of confidence after evidence suggests proceeds from auction were illicitly retained

Solicitors for John Edwards’ estate deny that his lover has inherited the art

Their problems could be blamed on the troubled stock market or an ongoing lawsuit between the directors and the executor of the bequest

Once enough money to pay off the Giacometti Association's bills had been made, the sale was brought to the close, to the chagrin of foreign buyers

The auction was moved to Drouot after commisaire-priseurs' took objection to court-directed sales legislature being overlooked

The estate was bequeathed to the Giacometti Association as a temporary measure to clear the way for a foundation, although these plans were derailed by Roland Dumas's misconduct

No evidence of blackmail, and video shows the artist satisfied with his gallery

Archives, boxes of drawings and documents pertaining to court procedures were confiscated by bailiffs, following the freezing of their assets last year

Bacon executor denies parallels with its own case

Debate over whether it constitutes part of the original “Block Beuys” installation

Millions of dollars from reproduction rights, hundreds of thousands of fakes and the authority to authenticate works are at stake. The Gala-Salvador Dalí Foundation, set up to care for his work, claims that Demart, which administers his intellectual property rights, is failing to do its job

The director of the Giacometti Association, Mary Lisa Palmer, corrects our coverage of the Giacometti plaster models and demystifies the forthcoming Giacometti Foundation

The new sole executor of Bacon's estate talks in his first public interview about the teams of lawyers now working to see that the artist’s beneficiary, John Edwards, receives precisely what Francis intended him to receive. And that is everything

Founder of unauthorised casts sentenced to ten years

The heir to the British painter’s works changes galleries from Marlborough to Tony Shafrazi

Delays over approving Giacometti Foundation suggest deliberate obstruction, so the only option remaining will be to hand over the collection to the state

Dali's former secretary has been successful in his appeal

The Fundació Gala-Salvador Dalí fills the hole left by break with Robert Descharnes

“The Spanish State cannot cancel a private agreement which is valid until 2004”

State and Foundation cancel their contract with Descharnes, the artist’s former secretary and administrator of copyright

Sculptural ensemble "La clairière" is a standout, expected to reach up to 6 million francs

Attempts to control spread of fakes with thousands seized in New York

Henry Ansbacher is said to have paid $15m (£7.5m) for the Spaniard’s copyright