Relationships
During the late 1930s and early 1940s, Fonteyn had a long relationship with composer Constant Lambert. Lambert expressed some aspects of this in his ballet Horoscope (1938).
In 1955, Fonteyn married Dr. Roberto Arias, a Panamanian diplomat to London. Their marriage was initially rocky due to his infidelities. She was arrested when he attempted a coup against the Panamanian government. In 1964, a rival Panamanian politician shot Arias, leaving him a quadriplegic for the rest of his life. Information released on 28 May 2010 indicated Dame Margot knew of, and at one point was involved in, the coup attempt.
After her retirement, she spent all her time in Panama, and was close to her husband and his children from an earlier marriage. Shortly before her husband's death, in 1989, Fonteyn was diagnosed with a cancer that proved fatal. She died on 21 February 1991 in a hospital in Panama City, Panama.
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