 In 1977, he was appointed a senator in the Cortes Constituyentes by the Spanish king Juan Carlos I.He was also appointed chief of the Romance literature section of the Consejo Superior de Investigaciones Científicas (CSIC, "Superior Council of Scientific Investigations").Riquer was a member of the Real Academia Española since 1965, president of the Real Academia de Buenas Letras de Barcelona, and corresponding member of numerous foreign institutions.