Question: Are Pyotr Nikolsky and Henri Marchand (Actor) of the same nationality?
Sentence (from "Pyotr Nikolsky"): He was the author of" L'etat de la dermatologie et de la syphiligraphie en Russie jusqu'à 1884"( The State of Dermatology and Syphiligraphy in Russia up until 1884).
Relevant evidence: No