josé miguel de carvajal-vargas y manrique de lara polanco, 2nd duke of san carlos, (8 may 1771 in lima, perú – 27 september 1828 in parís), 6th conde de castillejo and 9th conde del puerto, 10th "correo mayor de las indias", was the son of mariano joaquín de carvajal-vargas y brun, 8th conde del puerto, (deceased april 1796), and maria manrique de lara polanco y carrillo, daughter of the , the grand son of fermín francisco de carvajal-vargas y alarcón, born in chile, 1st duke of san carlos and grandee of spain, being a secretary of state, some sort of prime minister of spain under the absolutist restauration in the times of king fernando vii of spain, (1784–1833). he was a member of the royal spanish academy from 1814 to 1828 and, three times mayordomo mayor to the king.