1854 (probably) Helena Bavaria by Joseph Karl Stieler (location unknown to gogm)
According to Wikimedia, they are from left to right: Sophie, Maximilian Emanuel, Carl Theodor, Helene Karoline Therese, Ludwig Wilhelm, Mathilde Ludovika and Maria Sophie Amalie.
Princess Helene wears a formal dress with an off shoulder vee neckline, pleated bodice, vee waistline in this 1854 Stieler group portrait.
Keywords: 1854, Stieler, Helene of Thurn und Taxis, Mathilde Trani, Wittelsbach family, Princess, Countess, Queen, Bourbon family, German, straight coiffure, hat, off shoulder vee neckline, modesty piece, pleated bodice, quarter length close sleeves, vee waistline, full skirt, flounces, floral bodice ornament, neck band