Mathew Brady gained fame for photos showing the dead lying on the battlefields of the US Civil War that went from 1861 to 1865, grudge match opening any day now with Trump being the mouthpiece for the successors of the defeated confederates. He also photographed many leaders on the union side. So how did Maria Clotilde wind up on a Brady product? New world photographers printed photos of old world royalty on cartes de visite. However Jerome Bonaparte came to the new world where he married Elizabeth Patterson of Baltimore, Maryland so maybe Clotilde and Jerome Napoléon visited the USA or Brady went to Europe and photographed them in Europe.
From eBay fixed sides and despotted background with Photoshop and removed monocolor tint.