While I cannot source this image, it is not
from the Royal Collection's site. Their version is here.
Lely portrays Catherine of Bragança as one of his rather casually-dressed subjects in this 1663-5 portrait.
1663, Lely, Catherine of Bragança, Braganza family, Stuart family, Princess, Queen, British,
hurluberlu coiffure, scoop neckline, elbow length puffed sleeves, scarf,
chemise, slashed sleeves, engageantes, split bodice, wrap, necklace, draped
necklace, earrings, brooch, clasp