Who was the "king's engineer" to the  King of Portugal, Naples, Sicily and Sardinia and Duke of Milan?
Philip III of Spain Philip III (Spanish: "Felipe" ; 14 April 1578 – 31 March 1621) was King of Spain. He was also, as Philip II, King of Portugal, Naples, Sicily and Sardinia and Duke of Milan.
Maria Elisabetta Carlotta of Savoy Maria Elisabetta Carlotta of Savoy (16 July 1752 – 17 April 1753) was a Princess of Savoy by birth, and daughter of the king of Sardinia Victor Amadeus III of Savoy and his wife, Maria Antonia Ferdinanda of Spain (daughter of Philip V of Spain).