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Final years and death

In 1968, Dalí bought a castle in Púbol for Gala, and from 1971 she would retreat there for weeks at a time, Dalí having agreed not to visit without her written permission. His fears of abandonment and estrangement from his longtime artistic muse contributed to depression and failing health.

In 1980, at age 76, Dalí's health deteriorated sharply and he was treated for depression, drug addiction, and Parkinson-like symptoms, including a severe tremor in his right arm. There were also allegations that Gala had been supplying Dalí with pharmaceuticals from her own prescriptions.

Gala died on 10 June 1982, at the age of 87. After her death, Dalí moved from Figueres to the castle in Púbol, where she was entombed.

In 1982, King Juan Carlos bestowed on Dalí the title of Marqués de Dalí de Púbol (Marquess of Dalí of Púbol) in the nobility of Spain, Púbol being where Dalí then lived. The title was initially hereditary, but at Dalí's request was changed to life-only in 1983.

In May 1983, what was said to be Dalí's last painting, The Swallow's Tail, was revealed. The work was heavily influenced by the mathematical catastrophe theory of René Thom. However, some critics have questioned how Dalí could have executed a painting with such precision given the severe tremor in his painting arm.

From early 1984 Dalí's depression worsened and he refused food, leading to severe undernourishment. Dalí had previously stated his intention to put himself into a state of suspended animation as he had read that some microorganisms could do. In August 1984 a fire broke out in Dalí's bedroom and he was hospitalized with severe burns. Two judicial inquiries found that the fire was caused by an electrical fault and no findings of negligence were made. After his release from hospital Dalí moved to the Torre Galatea, an annex to the Dalí Theatre-Museum.

There have been allegations that Dalí was forced by his guardians to sign blank canvases that could later be used in forgeries. It is also alleged that he knowingly sold otherwise-blank lithograph paper which he had signed, possibly producing over 50,000 such sheets from 1965 until his death. As a result, art dealers tend to be wary of late graphic works attributed to Dalí.

In July 1986, Dalí had a pacemaker implanted. On his return to his Theatre-Museum he made a brief public appearance, saying:

When you are a genius, you do not have the right to die, because we are necessary for the progress of humanity.

In November 1988, Dalí entered hospital with heart failure. On 5 December 1988, he was visited by King Juan Carlos, who confessed that he had always been a serious devotee of Dalí. Dalí gave the king a drawing, Head of Europa, which would turn out to be Dalí's final drawing.

On the morning of 23 January 1989, Dalí died of cardiac arrest at the age of 84. He is buried in the crypt below the stage of his Theatre-Museum in Figueres. The location is across the street from the church of Sant Pere, where he had his baptism, first communion, and funeral, and is only 450 metres (1,480 ft) from the house where he was born.