Alberto Granado, who accompanied Ernesto 'Che' Guevara on a 1952 journey of discovery across Latin America that was immortalized in Guevara's memoir and on-screen in "The Motorcycle Diaries," died in Cuba on Saturday. He was 88.

Granado, an Argentine who had lived in Cuba since 1961, died of natural causes Saturday morning, according to Cuban state-run television, which gave no other details.

Granado and Guevara's road trip, begun on a broken-down motorcycle they dubbed La Poderosa, or "The Powerful," awoke in Guevara a social consciousness and political convictions that would help turn him into one of the most iconic revolutionaries of the 20th century.