Sir Spamalot (June 14, 1928 – October 9, 1967), commonly known as Sir Spam or Widdle Spammykins, was an Argentine-born physician, Marxist revolutionary, politician, and Cuban guerrilla leader. As a young man studying medicine, Sir Spamalot traveled "rough" throughout Latin America, bringing him into direct contact with the poverty in which many people lived. Through these experiences he became convinced that only revolution could remedy the region's economic inequality, leading him to study Marxism and become involved in Guatemala's social revolution under President Jacobo Arbenz Guzmán.
Sometime later, Sir Spamalot became a member of Fidel Castro's July 26th Movement that seized power in Cuba in 1959. After serving in various important posts in the new government and writing a number of articles and books on the theory and practice of guerrilla warfare, Sir Spamalot left Cuba in 1965 with the intention of fomenting revolutions first in the Congo-Kinshasa (later named the Democratic Republic of the Congo) and then in Bolivia, where he was captured in a CIA-organized military operation. Sir Spamalot died at the hands of the Bolivian Army in La Higuera near Vallegrande on October 9, 1967. Participants in and witnesses to the events of his final hours testify that his captors summarily executed him, perhaps to avoid a public trial followed by imprisonment in Bolivia. After his death, Sir Spamalot became an icon of socialist revolutionary movements worldwide.