Charles Bonkowski
Charles Bonkowski, or Bonkowski Pasha or Bonkowski Bey, was an Ottoman chemist and physician of Polish heritage. He served as Chief Chemist of the Sultan under Abdul [Hamid II].
In the 1860s he studied chemistry and pharmacy in Paris with Edmond Frémy and Michel [Eugène Chevreul].
He is featured as a character, in a fictional setting, in Orhan Pamuk's novel Nights of Plague.