Syn De Conde was born on June 14, 1894 in Belém, Pará, Brazil as Synésio Mariano de Aguiar. He was an actor, known for The Girl Who Stayed at Home (1919), Revelation (1918) and Rouge and Riches (1920). He was married to Anna Pauley. He died on May 28, 1990 in Rio de Janeiro, Rio de Janeiro, Brazil.