The Wikipedia article for Corneille de Lyon is here.
Upgrade image from Wikimedia posted on 17 November 2014.
Anne displays fashionable dress of around 1530 with French hood, crescent neckline, and a gently draped necklace.
Herbert Norris described how a French hood was made in pp. 110-111 and 336-340 of the 1997 Dover re-issue of Tudor Costume and Fashion. The descriptive drawing follows the image of Elisabeth of York. The French hood began as a semicircular hood like the gable headdress, but evolved to where the cloth was cut into a T figure with the top of the T being about 28-inches while the upright of the T was about 36-inches. The front edge - the top of the T - was cut slightly concave and edged with jewels. The upright of the T was sewn upon itself to form a tube. The hood was worn over a close fitting cap edged with jewels that could be secured beneath the chin by a thin chinstrap. The cap in turn rested on goffered (pleated) cloth, barely visible in this portrait.
Keywords: 1530, de Lyon, French, Anne de Pisseleu, Duchess, mistress, François I, straight coiffure, jeweled French hood, bodice, crescent décolletage, lower puffed tight sleeves, fur cuffs, under-sleeves, natural waistline, full skirt, under-skirt, shallow necklace, necklace, pendant, jeweled neckline