[3] With a bursary from King Stanisław Augustus, he then travelled to Paris to work under Joseph-Marie Vien and Carle van Loo at the Académie Royale, from 1760 to 1769.

[3] The latter had increased in numbers in France as a result of the alliance between King Louis XV and Marie Leszczyńska.

[3] After the departure from the French court of Élisabeth-Louise Vigée-Le Brun in 1789, Kucharsky became painter to Queen Marie-Antoinette.

[3] Kucharsky's best-known work today includes his portraits of the doomed French royal family, especially the future King Louis XVII.

The final portrait, painted in 1793 of Marie Antoinette, was sold at auction by Piasa on 21 May 2003 and is attributed to Kucharsky.