Career
José Trasimundo Mascarenhas Barreto was born in Lisbon on 11 January 1802 to João José Luís de Mascarenhas Barreto, 6th Marquis of Fronteira, and Leonor Benedita de Almeida e Almeida, daughter of Leonor de Almeida Portugal, 4th Marquise of Alorna. He had only one daughter, Doctorate. Maria Mascarenhas Barreto.
