Portrait of a Man with a Roman Coin 1480 or later Hans Memling (1430-1494)

The picture has something of this: people, portrait, man, wear, popularity, leader, famous, person, jacket, mustache, facial expression, necklace, scientist, music, side view, writer.
Perhaps it’s a close up of a painting of a man wearing a black outfit and holding a piece of food in one hand and a palm tree in the other hand.