Question: Sergei Alekseyevich Korovin was the Russian brother of Konstantin Alekseyevich Korovin, who was the leading Russian artist in what type of painting?

Context paragraphs:
Sergei Shutov: Sergei Alekseyevich Shutov (also spelled Sergey; Russian: "Сергей Алексеевич Шутов", born 1955) is a Russian artist active in painting, drawing, sculpture, photography, and audio- and video installations.  He lives and works in Moscow.

Konstantin Tereshchenko: Konstantin Alekseyevich Tereshchenko (Russian: Константи́н Алексе́евич Тере́щенко ; ] ; born 17 June 1994) is a Russian racing driver.

Konstantin Kulabukhov: Konstantin Alekseyevich Kulabukhov (Russian: Константин Алексеевич Кулабухов ; born 3 April 1995) is a Russian football defender.

Konstantin Shamayev: Konstantin Alekseyevich Shamayev (Russian: Константин Алексеевич Шамаев ; born 30 June 1999) is a Russian football player.  He plays for FC Krylia Sovetov-2 Samara.

Sergei Golyatkin: Sergei Alekseyevich Golyatkin (Russian: Серге́й Алексеевич Голяткин ; born 4 May 1988 in Lukhovitsy) is a Russian footballer who last played for Slutsk.  He made his debut in the Russian Premier League in 2007 for FC Rubin Kazan.

Sergei Korovin: Sergei Alekseyevich Korovin (Russian: Сергей Алексеевич Коровин; 19 August 1858, Moscow - 26 October 1908, Moscow) was a Russian Realist painter; the brother of Konstantin Korovin.

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.

Konstantin Krasavin: Lieutenant Colonel Konstantin Alekseyevich Krasavin (Russian: Константин Алексеевич Красавин ) (May 20, 1917 – January 1988) was a Russian flying ace and fighter pilot of the Great Patriotic War, during which he flew for the Soviet air forces.  He is credited with 376 sorties, 106 dogfights and 21 kills between 1941 and 1945 on the Eastern Front, piloting the Yakovlev Yak-3, the Lavochkin La-5, the Yakovlev Yak-7 and the Hawker Hurricane during which time he held the rank of Major.  He was awarded the title of Hero of the Soviet Union along with the Order of Lenin for military valour in 1946 by the Presidium of the Supreme Soviet, retiring from military service in 1955.  His citation for his Gold Star medal read that "wherever Comrade Krasavin is with his group of fighters, there is victory over the enemy".

Sergei Hackel: Archpriest Sergei Alekseyevich Hackel (alternate spelling Gakkel, Russian: Сергей Алексеевич Гаккель ; 24 August 1931 – 9 February 2005) was a British Russian Orthodox priest, theologian, academic and broadcaster, who was the senior priest in Britain of the Russian Orthodox Diocese of Sourozh.

Konstantin Titov: Konstantin Alekseyevich Titov (Russian: Константин Алексеевич Титов ; born October 30, 1944 in Moscow) is a Russian politician.  He was the governor of the Samara Region, Russian Federation from 1991 till 2007.

Supporting paragraphs: Sergei Korovin Konstantin Korovin
Answer: Russian Impressionist painter