The painting “Red Sunset on the Dnieper” by Arkhip Kuindzhi, (1841–1910), hangs in New York’s Metropolitan Museum of Art. Kuindzhi was born in Mariupol, Ukraine, and is celebrated as one of the great painters of Imperial Russia. Since Russia’s invasion of Ukraine last year, and the destruction of a museum in Mariupol dedicated to Kuindzhi’s work, Melissa Rodman reports that art historians have reconsidered, and disagree on, how to identify the artist.