Portrait gr. NF Sumarokov – Elston. 1903 Valentin Serov (1865-1911)

The picture has something of this: people, wear, man, portrait, facial expression, side view, leader, music, administration, politician, neckwear, facial hair, outerwear, Impressionism.
Perhaps it’s a painting of a man sitting in a chair wearing a blue shirt and a white collared shirt with a black tie and a brown hat on his left hand.