From the "LORRAINE LORENA LOTHRINGEN" album on flickr; size doubled by gogm.
This anonymous drawing shows Catherine wearing a plain but deeply goffered ruff and a reticulated partlet.
Keywords: Catherine of Clèves, Catherine de Clèves, Duchess of Guise, duchesse de Guise, Cleves family, Lorraine family, Countess, Duchess, Countess of Eu, comtesse d'Eu, straight coiffure, framing headdress, hair jewelry, bateau crescent neckline, neckline ruff, partlet, necklace, earrings, jeweled partlet, jeweled bodice ornament