Philip Prospero, Prince of Asturias (Felipe Próspero José Francisco Domingo Ignacio Antonio Buenaventura Diego Miguel Luis Alfonso Isidro Ramón Víctor; 28 November 1657 1 November 1661) was the first son of Philip IV of Spain and Mariana of Austria to survive infancy.
Felipe Próspero José Francisco Domingo Ignacio Antonio Buenaventura Diego Miguel Luis Alfonso Isidro Ramón Víctor, Prince of Asturias (born November 28, 1657, died November 1, 1661), was the eldest son of Philip IV of Spain and Mariana of Austria who lived beyond infancy.