1677-1679 Christiane von Sachsen-Merseburg
Her genealogical information is here. This is an early appearance of the Glucksbergs.
From Wikimedia.
Christiane wears an exotic costime - a normal skirt under a cuirasse bodice that is a real plate armor cuirasse.
Keywords: 1677, Herzogin Christiane von Schleswig-Holstein-Glücksburg, Glucksberg family, Wettin family, Duchess, German, hurluberlu coiffure, scoop neckline, chemise, modesty piece, elbow length full sleeves, cuffs, cuirasse, under-bodice, quarter length notched sleeves, tabbed bodice, close skirt, necklace, earrings, brooch, bracelets