There were two Ulrika Eleonoras who were Queen of Sweden, the first (shown here) was from Denmark while the second was her daughter who ruled in her own right. This Ulrika Eleonora's Wikipedia article is here.
I added lightness to bring out details of her coiffure.
Being portrayed in casual dress is de rigueur in the 1670s and Queen Ulrika is following the fashion, She wears little jewelry.
Keywords: Ehrenstrahl, Ulrika Eleonora of Denmark, Princesss, Queen, Oldenburg family, Vasa family, Swedish, long curly coiffure, off shoulder scoop décolletage, lining, chemise, modesty piece, elbow length puffed inner-sleeves, elbow length puffed outer-sleeves, no waistline, earrings, clasps, wrap