From the lost gallery's photostream on flickr. Also posted to her Subalbum here.
This strongly patterned dress is a saya making what may be a late appearance before evolving into the tontillo.
Keywords: 1635, Velazquez, Maria Anna of Austria (1604-1646), María de Austria, María Ana de Austria, infanta de España, Infantin von Spanien, emperatriz del Sacro Imperio Romano Germánico, Reina Consorte de Hungría, Maria Anna von Spanien, Kaiserin des Heiligen Römischen Reiches, Habsburg family, Princess, Empress, Spanish, straight coiffure, under-bodice, high enclosing neckline, ruff, buttons, long tapered false sleeves, ruffled cuffs, basque over-bodice, vee décolletage, lapels, lining, tabbed hanging sleeves, narrow cuffs, necklace, pendant, girdle, deep vee waistline, flared skirt, gloves, folding fan, saya