1860–1869
Pierre Louis Pierson, 1856
Pierre Louis Pierson, 1860
Pierre Louis Pierson, 1895
Pierre Louis Pierson, 1859
Pierre Louis Pierson, 1861
![[La Comtesse in Ermine Cape]](https://images.metmuseum.org/CRDImages/ph/original/DP235183.jpg)
![[Countess de Castiglione]](https://images.metmuseum.org/CRDImages/ph/original/DP205250.jpg)
![[Napoleon III and the Prince Imperial]](https://media.getty.edu/iiif/image/e21e5abb-4c3f-4f40-95f7-0c76fe062e7f/full/843,/0/default.jpg)
![[La Comtesse décolletée; Roses mousseuses]](https://images.metmuseum.org/CRDImages/ph/original/DP278747.jpg)
![[Countess de Castiglione]](https://images.metmuseum.org/CRDImages/ph/original/DP205246.jpg)
![[Album page with ten photographs of La Comtesse mounted recto and verso]](https://images.metmuseum.org/CRDImages/ph/original/DT10614.jpg)