Son of Adrião Fernando Coelho de Sampaio e Castro Toscano de Albuquerque Homem de Sá, son of a bastard daughter of the son of the second marriage of the first Viscount of Valdoeiro Nobleman of Coat of Arms of de Figueiredo (timber), de Albuquerque ancient, Brandão and Toscano with crown of Viscount, and and his former and first wife, Rosa María Calvo Sierra, Spanish. Has a sister named Catarina Sofia Calvo Sierra Homem de Sá (b. 1965) and a half-brother from his father second civil marriage to Maria Eunice de Almeida Martins Cerqueira, named Ricardo Bruno Martins Cerqueira Homem de Sá.