Gérard, François Pascal Simon (Baron) – Keizer Napoleon I in kroningsgewaad, 2 december 1804, 1805 - 1815 Rijksmuseum: part 1

The picture has something of this: people, veil, sculpture, woman, wear, god, statue, decoration, costume, gold, crown, traditional, portrait, dress, princess.
Perhaps it’s a painting of a man dressed in a white and red outfit with a cane in his right hand and a red and white robe on his left.