Felix Maria Diogg was a Swiss painter and is considered the most important Swiss Classicism portraitist.
Jean-Jacques Mercier (1750-1827) was a prosperous industrialist, also known as Jean-Jacques I.
Artist: Felix Maria Diogg (1762-1834).
Unsigned.
Medium: Oil on canvas.
Condition: Very good condition.
Dimensions: 67 x 53 cm. / 26 ¼ x 21 in.
Frame: 75 x 61 cm. / 29 ½ x 24 in. Gilt wood, very good condition.
Provenance: France.