On 30 January 1965, he married Maria Salomé Soares Pais Telles Antunes, Secretary-General of the Lisbon Academy of Sciences and Secretary of the Academy Class of Letters, Portugal's highest linguistic governing body.[citation needed] The couple have two children: Helena Luísa Soares Pais Telles Antunes, M.D., a cardiothoracic surgeon and researcher, and Ana Isabel Soares Pais Telles Antunes Béreau, Ph. D., a preeminent concert pianist associated with New York University, Évora University and Lisbon's Amadores Academy of Music.