Grand Admiral in the context of Prince Potemkin

Prince Grigory Aleksandrovich Potemkin-Tauricheski (11 October [O.S. 30 September] 1739 – 16 October [O.S. 5 October] 1791) was a Russian military leader, statesman, nobleman, and favourite of Catherine the Great. He died during negotiations over the Treaty of Iași, which ended a war with the Ottoman Empire that he had overseen.

Potemkin was born into a family of middle-income landowners of Russian nobility. He first attracted Catherine's favor for helping in her 1762 coup, then distinguished himself as a military commander in the Russo-Turkish War (1768–1774). He became Catherine's lover, favorite and possibly her consort. After their passion cooled, he remained her lifelong friend and favored statesman. Catherine obtained for him the title of Prince of the Holy Roman Empire and gave him the title of Prince of the Russian Empire among many others: he was both a Grand Admiral and the head of all of Russia's land and irregular forces. Potemkin's achievements include the peaceful annexation of the Crimea (1783) and the successful second Russo-Turkish War (1787–1792), during which the armed forces under his command besieged Ochakov.

Generalfeldmarschall (German: [ɡenəʁaːlˈfɛltmaʁʃal] ; from Old High German marahscalc, "marshal, stable master, groom"; English: general field marshal, field marshal general, or field marshal; often abbreviated to Feldmarschall) was a rank in the armies of several German states and the Holy Roman Empire, (Reichsgeneralfeldmarschall); in the Habsburg monarchy, the Austrian Empire and Austria-Hungary, the rank Feldmarschall was used. The rank was the equivalent to Großadmiral (English: Grand Admiral) in the Kaiserliche Marine and Kriegsmarine, a five-star rank, comparable to OF-10 in today's NATO naval forces.

Koca Yusuf Pasha was an Ottoman statesman. He was grand vizier from 25 January 1786 to 28 May 1789 (during reign of Abdul Hamid I), and Kapudan Pasha (Grand Admiral of the Ottoman Navy) after 19 December 1789. He became grand vizier again, this time serving from 12 February 1791 until mid-1792 (during reign of Selim III). He is considered to be one of the best Ottoman commanders of his time period,

He was a Georgian convert to Islam and also served as the governor of the Peloponnese.