Carlos Sauvalle, born in Havana in 1839, played a crucial role in José Martí's life during their exile in Spain. After being deported, he took care of Martí's health, who was ill, by providing him with care and support. Their friendship led to literary and political collaborations. Sauvalle returned to Cuba in 1879 and faced financial difficulties, but he remained an important figure in the history of the struggle for independence.