Sava Vladislavich
Count Sava Lukich Vladislavich-Raguzinsky (Russian: Са́вва Луки́ч Рагузи́нский-Владиславич; Serbian: Сава Владиславић Рагузински, Sava Vladislavić Raguzinski; 16 January 1669 – 17 June 1738) was a Russian and Serbian diplomat, merchant, adventurer. He was in the employ of Peter the Great.