Sardinia: Victor Amadeus (Vittorio Amadeo) III Naples: Ferdinand IV Ottoman Empire: Selim III Papal States: Pius VI . Mecklembourg-Strelitz: Adolphus Frederick IV Tuscany (Austrian Protectorate): Leopold II (1765-1790) Holy Roman Emperor/Austrian ruler from 1790. Joseph II actually died in 1790 two years before the outbreak of the war with France, after an