From Pinterest search.
Infanta Catalina’s dress has a basque waistline and it is adorned with strips about 3 cm wide adorned with diagonal slashes. Her false sleeves appear to have seams running through some of the slashes. Her coiffure appears to be built up with a hair piece, arched tiara, and feather
Keywords: Sanchez Coello, Infanta Catalina, Caterina d’Austria, Catalina Micaela de Austria, Caterina Michela d'Asburgo, duchessa di Savoia, Princess, Duchess, Habsburg family, Savoia family, Spanish, straight coiffure, jeweled feathered headdress, earrings, fitted slashed tabbed bodice, high enclosing neckline, lace neck ruff, jeweled supportasse, slashed tabbed hanging sleeves, slashed false sleeves, lace-edged back-flared cuffs, bracelets, jeweled frogging, basque waistline, jeweled skirt, farthingale, saya