La maréchale Lannes, duchesse de Montebello

This portrait of the Maréchale Lannes, Duchess of Montebello — widow of the celebrated general killed at Aspern-Essling in 1809 — connects Prud'hon to the same moment of Napoleonic commemoration that occupied Guérin in his own canvas of the marshal's death. Louise Guéhéneuc, who married the marshal in 1800, was a prominent figure in Napoleonic and later Restoration society, and her portrait by Prud'hon reflects his continued activity as a portraitist of the imperial elite through the first decades of the century. The date recorded as 1850 appears anomalous given Prud'hon's death in 1823, suggesting a possible error in documentation or a posthumous attribution; the style points to Prud'hon's own hand if the dating is adjusted to the 1810s or early 1820s.

The three-quarter length format allows Prud'hon to develop the characteristic soft atmospheric setting of his female portraits, with the sitter's refined dress and bearing established through the same luminous glazing technique he applied to allegorical figures. The maréchale's mourning status (post-1809) may be reflected in the chromatic register of the costume.