Çenebaz Osman Efendi

His Russian counterparts were Grigory Grigoryevich Orlov, Catherine II's lover and counsellor, and Aleksey Mikhailovich Obreskov (1720–1787), Russia's peacetime ambassador in Istanbul.

His name remains a byword to this day, thanks to his highly original perception of international relations and the unusual methods he developed while conducting diplomatic negotiations.

He started by burying an amulet into the ground on the way the members of the Russian delegation were to walk each day to render themselves to the conference hall.

Russian Field-Marshal Count Pyotr Rumyantsev noted in his memoirs: "If we say this efendi is crazy, it would be improper, so let us just say that he is smart but his is not like any other intelligence, we have ever experienced.".

The same Ahmed Resmi Efendi was to be the one to appose his signature on the 1774 Treaty of Küçük Kaynarca, disastrous for the Ottomans, at the end of the second round of the war resumed in March 1773.