On the accession of Louis XVI, Denon was transferred to Sweden; but he returned, after a brief interval, to Paris with the ambassador M. de Vergennes, who had been appointed foreign minister.
In 1775 Denon was sent on a special mission to Switzerland, and took the opportunity of visiting Voltaire at Ferney.
He made a portrait of the philosopher, which was engraved and published on his return to Paris.
His next diplomatic appointment was to Naples, where he spent seven years, first as secretary to the embassy and afterwards as chargé d'affaires.
He devoted this period to a careful study of the monuments of ancient art, collecting many specimens and making drawings of others.
He also perfected himself in etching and mezzotinto engraving.
While in Naples he met Sir William and Lady Hamilton and he etched Lady Hamilton 'posing'.

The death of his patron, M. de Vergennes, in 1787, led to his recall, and the rest of his life was given mainly to artistic pursuits.
On his return to Paris he was admitted a member of the Académie royale de peinture et de sculpture (1787).
After a brief interval he returned to Italy, living chiefly at Venice.
He also visited Florence and Bologna, and afterwards went to Switzerland.
While there he heard that his property had been confiscated, and his name placed on the list of the proscribed, and with characteristic courage he resolved at once to return to Paris: his situation was critical, but he was spared, thanks to the friendship of the painter David, who obtained for him a commission to furnish designs for republican costumes.
When the Revolution was over, Denon was one of the bands of eminent men who frequented the house of Madame de Beauharnais.
Here he met Bonaparte, to whose fortunes he wisely attached himself.
On the accession of Louis XVI, Denon was transferred to Sweden; but he returned, after a brief interval, to Paris with the ambassador M. de Vergennes, who had been appointed foreign minister. In 1775 Denon was sent on a special mission to Switzerland, and took the opportunity of visiting Voltaire at Ferney. He made a portrait of the philosopher, which was engraved and published on his return to Paris. His next diplomatic appointment was to Naples, where he spent seven years, first as secretary to the embassy and afterwards as chargé d'affaires. He devoted this period to a careful study of the monuments of ancient art, collecting many specimens and making drawings of others. He also perfected himself in etching and mezzotinto engraving. While in Naples he met Sir William and Lady Hamilton and he etched Lady Hamilton 'posing'.
The death of his patron, M. de Vergennes, in 1787, led to his recall, and the rest of his life was given mainly to artistic pursuits. On his return to Paris he was admitted a member of the Académie royale de peinture et de sculpture (1787). After a brief interval he returned to Italy, living chiefly at Venice. He also visited Florence and Bologna, and afterwards went to Switzerland. While there he heard that his property had been confiscated, and his name placed on the list of the proscribed, and with characteristic courage he resolved at once to return to Paris: his situation was critical, but he was spared, thanks to the friendship of the painter David, who obtained for him a commission to furnish designs for republican costumes. When the Revolution was over, Denon was one of the bands of eminent men who frequented the house of Madame de Beauharnais. Here he met Bonaparte, to whose fortunes he wisely attached himself.
Vivant Denon