Ernesto 'Che' Guevara, a symbol of modern revolution, is being honoured around the world this week, 40 years after his execution.
Ceremonies in Ireland and throughout Latin America will mark the occasion.
The main ceremony in Cuba will begin in Santa Clara, 300km east of Havana, where the Argentine-born doctor-turned-guerrilla leader fought a battle during the Cuban revolution in 1958 and where he is buried.
Mr Guevara's Argentine widow Aleida March will be at the event, along with his children Aleida, Camilo, Celia and Ernesto.
The ceremony will be headed by 'a leader of the revolution', according to reports, but they did not specify if it will be convalescing leader Fidel Castro or his brother Raul.
Fidel Castro paid respect to his old comrade-in-arms in a newspaper article, describing him as being 'like a flower torn up prematurely by the stem.'
Mr Guevara met the Castro brothers in Mexico in 1955, and quickly joined their uprising against then Cuban dictator Fulgencio Batista.
By the time the revolution triumphed in January 1959 Mr Guevara was a key player.
In Bolivia, President Evo Morales, a fervent admirer of both Che Guevara and Fidel Castro, will lead a ceremony in the southeastern town of Vallegrande, where Mr Guevara's bones were found in a mass grave in 1997.
In Venezuela, President Hugo Chavez will hold a ceremony at Pico del Aguila in western Venezuela, which Mr Guevara visited 55 years ago.
Born in the Argentine city of Rosario, Mr Guevara travelled across Latin America in 1952 and 1953 and was shocked to see the economic disparity in the region.
His life changed dramatically when he met Castro in Mexico.
Mr Guevara was convinced that violence was needed to overturn the unjust social order in Latin America.
After leading a group of Cuban revolutionaries fighting with Marxist guerrillas in the Congo, he travelled to Bolivia in 1966.
Mr Guevara led a small clutch of rebels in Bolivia for 11 months trying to spread revolution, but found little support.
The Bolivian army and two Cuban-American US Central Intelligence Agency agents captured an ill Guevara in the village of La Higuera, and executed him on 9 October 1967. He was 39.
With his death, a legacy was born - in which Mr Guevara became a symbol of modern rebellion against western imperialism.
His detractors still see him as a dangerous and deluded terrorist.
A famous photograph by Alberto Korda (left) was the nasis for an iconic representation by Irish artist Jim Fitzpatrick which was eventually reproduced on everything from t-shirts to backpacks.
Mr Fitzpatrick is said to have served Mr Guevara in a bar in Co Clare on one of his three visits to Ireland.
Mr Guevara also had Irish roots. His ancestor Patrick Lynch was born in Galway in 1715.
Cuban Ambassador Noel Carrillo will speak at a rally in Mr Guevara's memory this Thursday at Liberty Hall in Dublin, followed by a 'celebration' at the cuban restaurant Floridita.
