CHARLES III of SPAIN: (1716-1788) King of Spain 1759-88 as King Charles III, previously King Charles VII of Naples and Sicily 1734-59. Charles resided in Naples for nineteen years and gained valuable experience as Ruler before becoming King of the Spanish Empire. Charles III is widely regarded as the most successful European ruler of his generation. An excellent L.S., `Carolus´, one page, large oblong 21 x 16, Naples, 28th June 1747, to a Turkish Royal Prince, in Latin. The cleanly written document, signed by Charles in his capacity as King of Naples and Sicily and Duke of Parma and Piacenza, states in part `The present letter which will be presented to you by D. Guglielmo de Ludorff who we have decided will remain at your court and in charge of our affairs..´, further referring to the previous envoy who is requested to return to his own Kingdom court, and reaffirming his wishes of strengthen their friendly relationships, Charles says `For this reason, D. Guglielmo de Ludorff is most of all in charge of securing the firm and particular attention we make to your person and your merit, and expect your contribution and your friendship which with very great pleasure exists at present between us and the Ottoman Porte… wishing you a long and happy life..´ Countersigned at the base by Giovanni Fogliani d´Aragona. Bearing to the verso a large and very attractive paper seal affixed showing a Royal coat of arms. G At the time of the present letter, the Turkish ruler was Sultan Mahmud I (1696-1754) and the present letter is most probably addressed to his court.