A Portrait Of Johann II Von Liechtenstein Johann Baptist Lampi (the Elder) (1751-1830)

The picture has something of this: portrait, people, wear, retro, music, medal, man, woman, costume, facial expression, vintage, dress, jewelry, fashion, outfit, necklace.
Perhaps it’s a painting of a man in a military uniform with his hands on his chest and a sword in his other hand, with a cloudy sky in the background.