During the period of the Continental System he undertook another multi-year trip through Switzerland, France, and Italy, during which he got to know the Emperor Napoleon and his first wife Josephine in Paris. After his return to Flottbek he lived mainly from income earned from agriculture. Upon the sale of his model estate to the banker and senator Martin Johann Jenisch in 1828, Voght lived with Bonaparte. He later dwelt with the widow of his partner Georg Heinrich Sieveking, who had died in 1799.