Later, she worked as a journalist, magazine editor and publicist for Vanidades, The New York Times, The Connoisseur, The Christian Science Monitor, and other publications.
In the autumn of 1646, a Swedish delegation arrived in Paris, led by Christina's favourite, the connoisseur Magnus Gabriel De la Gardie, who was so pleased with recent French developments in the art of gardens that he engaged André Mollet for the queen on the spot.
Coypel’s own advisors were the comte de Caylus, the brilliant and tireless antiquary and founder of archaeology, who had been an advisor to Orry and was a close friend of the connoisseur Pierre-Jean Mariette, and Abbé Leblanc, an early critic of the excesses of the Rococo and an advocate of a chastened simplicity in the arts of design.
These engravings spread their style beyond the Empire; they helped put a French stamp on the English Regency style and influenced the connoisseur-designer, Henry Hope.
Among his first important clients was the connoisseur and collector Johann Matthias von der Schulenburg, for whom Guardi multiple paintings with an Orientalist theme.
The Ludovisi Throne's less accomplished twin, the Boston Throne in the Museum of Fine Arts, Boston, which appeared in 1894, shortly after the Ludovisi auction and was bought by the connoisseur Edward Perry Warren, who donated it to Boston, is widely doubted.
In 1682 he was appointed ambassador to Venice, in which post he took with him as secretary his tutor, the connoisseur Roger de Piles.