Portrait of Count Gerolamo Secco Suardo Vittore Giuseppe Ghislandi (1655-1743)

The picture has something of this: people, portrait, coat, wear, jacket, music, fame, outerwear, pants, famous, pop, talent, administration, skirt, woman, lid.
Perhaps it’s a painting of a man in a black outfit with a white collar and long white hair, standing in front of a red curtain and red background.