From forum.artinvestment.ru/blog.php?b=270065&langid=5. Also posted to the Transition from Ruffs to Collars 1620 to 1630 Album here next to a portrait of Paolina Adorno Brignole-Sale painted by van Dyck, perhaps while he was touring Italian and Mediterranian courts.
The dress has a basque bodice, suggesting the 20s, as well as hanging sleeves and matching false sleeves. The skirt is extensively slashed.
Keywords: van Dyck, straight coiffure, headdress, partlet, earrings, necklace, high vee neckline, lace-edged collar, basque bodice, jeweled crucifix, tabbed hanging sleeves, long full false sleeves, lace-edged back-flared cuffs, buttons, draped jeweled bodice ornaments, basque waistline, skashed full skirt