When Eladio Florentino Dieste Gonçalves was born on 14 March 1880, in San Vicente del Martir, Rocha, Uruguay, his father, Eladio Dieste Muriel, was 34 and his mother, Olegaria Gonçalves Silveira, was 27. He married Elisa Aurora Saint Martin Lamarque in 1912, in Salto, Uruguay. They were the parents of at least 3 sons. He immigrated to Rio de Janeiro, Rio de Janeiro, Brazil in 1940. He died on 14 April 1972, at the age of 92.