Question: Sergei Alekseyevich Korovin was the Russian brother of Konstantin Alekseyevich Korovin, who was the leading Russian artist in what type of painting?
Sentence (from "Konstantin Korovin"): Konstantin Alekseyevich Korovin (Russian: Константи́н Алексе́евич Коро́вин , first name often spelled Constantin; 5 December [O.S. 23 November] 1861 11 September 1939) was a leading Russian Impressionist painter.
Relevant evidence: Yes