1806 Friedrich Wilhelm III and His Family by Heinrich Anton Dähling (location unknown to gogm)
From Wikimedia.
Queen Luise wears an amazing pure white simple dress; the sole hints of luxury are the dress is pure white when the only tide was in the sea and a circlet on her head.
Keywords: 1806, Dähling, Queen Luise of Prussia, Princess, Queen, Mecklenburg-Strelitz family, Hohenzollern family, German, curly coiffure, circlet, square décolletage, quarter length puffed sleeves, close skirt