Her geneall summary is here. Her husband's Wikipedia article is here.
From Wikimedia.
Marquise Eleonor wears a bodice adorned with a trellis of pearls complementing her pearl necklaces and bracelets. Her dress has waffle panniers.
Keywords: Countess, Marquise, Bragança family, Portuguese, long straight coiffure, jeweled headdress, off shoulder scoop neckline, modesty piece-bertha, lace, elbow length puffed sleeves, forward-back flared engageantes, vee waistline, panniers, necklace, earrings, jeweled bodice ornament, bracelets, robes