CARDINAL BANDINELLO SAULI, HIS SECRETARY, AND T(2 Sebastiano del Piombo (1485-1547)

The picture has something of this: people, man, two, wear, portrait, facial expression, music, musician, group, side view, three, outfit, administration, profile, recreation, interaction, indoors.
Perhaps it’s a close up of a painting of a man pointing to another man with a book in front of him and a book on a table.