Madame Charpentier was a well-known Parisian hostess, particularly influential in literary and political circles.  This painting, shown at the Salon in 1879, was an impressive blend of society portraiture and Renoir's own creativity.  It was very well received.

Madame Charpentier and Her Children 1878
Pierre August Renoir, 1841-1919, French
Metropolitan Museum of Art, New York
