George John Vernon Warren (1803–1866), 5th Baron Vernon John Collier (1850-1934)

The picture has something of this: people, portrait, menswear, dinner jacket, leader, furniture, man, outfit, popularity, musician, chair, wear, administration, writer, neckwear, music, award, room.
Perhaps it’s a painting of a man sitting in a chair with his hand on his chin and a book in his other hand, in front of a table.