From bbc.co; a vertical split down the middle was filled in with Photoshop by gogm.
This could be called a close up from this Rubens portrait of Isabel Clara Eugenia.
Keywords: Pourbus the Younger, Infanta Isabel Clara Eugenia, Princess, Spanish, Habsburg family, straight coiffure, jeweled headdress, framing headdress, hair jewelry, high enclosing neckline, neck ruff, lace, hanging sleeves, false sleeves, hanging sleeves, draped necklace