Who was the "king's engineer" to the  King of Portugal, Naples, Sicily and Sardinia and Duke of Milan?
Tibúrcio Spannocchi Tiburzio Spannocchi (1541–1609) (also Spanucchi, Spanochi, Spanoqui, Hispanochi etc.) was "king's engineer" to Philip II of Spain and subsequently to Philip III of Spain. He was named "Chief Engineer" in 1601.
Duke of Saldanha Duke of Saldanha (in Portuguese "Duque de Saldanha") is a Portuguese title granted by royal decree of Queen Maria II of Portugal, dated from November 4, 1846, to João Carlos Saldanha de Oliveira Daun (1790-1876), also known as Marshal Saldanha, leader of the liberal armies, during the Liberal Wars in Portugal.