This article is about a Polish origin Ottoman diplomat Ahmed Rüstem Bey (Alfred Bielinski) who worked at the Ottoman Ministry of Foreign Affairs and its several foreign offices such as Çetine (Karadağ) and Washington Embassies. When he was the ambassador in Washington, Rüstem Bey made heavy criticisms of American government which was following a path in opposition to Turkish policies. Because of these criticisms, Ahmed Rüstem Bey, an extraordinary personality anda diplomat, was pronounced "persona non grata" by the US President Woodrow Wilson. He also was an advisor to Mustafa Kemal Pasha on foreign affairs, and he was appointed to important missions during the independence struggle. His attitude and his actions show us that he loved Turkey as much as a Tukish-born Turk can love his country. He defended Turkish values and fought for them throughout his life, and for these attributes he deserves to be a research topic as an important personality in Turkish history.