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.
Prince Carlo Francesco of Savoy Carlo Francesco of Savoy (Carlo Francesco Maria Augusto; 1 December 1738 – 25 March 1745) was a prince of Savoy and Duke of Aosta. He was born in the reign of his father Charles Emmanuel III, King of Sardinia.