Seven Viceroys served during the reign of Carlos II (1665 - 1700) so I cannot find genealogical/biographical information about her.
From pinterest.com/green_eyeds85/spanish-ladies-of-baroque/.
The long curly coiffure with some of the hair swept over half of her forehead is common in hispanic portraits of the era.
Keywords: Virreina de Napoles, long curly coiffure, earrings, jeweled partlet, high neckline, fitted bodice, lace bertha, straight neckline, long puffed sleeves, puffed cloth ornaments, lace back-flared cuffs, vee waistline, lace peplum, full over-skirt, lace-edged handkerchief, folding fan