1783 Comtesse d'Artois et ses enfants by Charles Emmanuel Leclercq (Versailles)
The Comtesse d'Artois had three children who could be portrayed here, Louis Antoine (1775-1844), Sophie (1776-1783), and Charles Ferdinand (1778-1820). She had another child in 1783 who died at around six months age.
There are various spellings for the artist's family name, but the spelling "Leclercq" applies according to Reunion des Musées Nationaux.
From Wikimedia; numerous cracks in the paint, but not all, were fixed with Photoshop by gogm.