Jacques Marquet de Montbreton de Norvins

Jacques Marquet de Montbreton, baron de Norvins (Paris, 18 June 1769 - Paris, 30 July 1854) was a French politician and writer, also a soldier, lawyer and administrator.

A portrait of Jacques de Norvins in the National Gallery, London was painted by Ingres in 1811–12, when the sitter was Napoleon's Chief of Police in Rome.

Originally, instead of the curtain at the left, there was a fully painted bust of a boy's head on top of a small column.

The presumption is that this was overpainted with the curtain after the fall of Napoleon, either by Ingres himself, or another artist.

Strictly speaking, these alterations might not be described as pentimenti, because of the presumed lapse of time, and because another artist may have made the change.