Question: Are Francisco De Mello E Castro and Mikhail Znamensky of the same nationality?
Sentence (from "Mikhail Znamensky"): Mikhail Stepanovich Znamensky( 26 May 1833, Kurgan, Imperial Russia—15 March 1892, Tobolsk, Imperial Russia) was a Russian writer, memoirist, painter, caricaturist, archeologist and ethnographer.
Relevant evidence: Yes