Queen Adelaide died in 1855. The priod for wearing mourning colors has passed. Maria Pia was married in 1862 and Clotilde in 1859. This portrait probably dates to not long before Clotilde’s marriage.
From theesotericcuriosa.blogspot.com/2015_12_19_archive.html?view=classic.
This probably shows early cage-crinoline era dresses that are somewhat flatter in front and also not as full as they could be.
Keywords: Queen Maria Pia, Maria Pia di Savoia, Maria Pia de Saboia, rainha de Portugal, Princess, Queen, Savoy family, Bragança family, straight coiffure, earrings, chemisette, high neckline, collar, pin, necklace, fitted bodice, three quarter length pagoda sleeves, long full under-sleeves, bracelets, crinoline, maxi-length skirt
Princess Clotilde Savoia Bonaparte, Maria Clotilde di Savoia, Clotilde di Savoia, Ludovica Teresa Maria Clotilde di Savoia, principessa di Savoia, Marie-Clotilde de Savoie, princesse Napoléon, Savoia family, Bonaparte family, Princess, straight coiffure, earrings, chemisette, high neckline, collar, bow tie, necklace, fitted bodice, buttons, three quarter length pagoda sleeves, lace flounces, long full under-sleeves, tight cuffs, crinoline, handkerchief