1763 Comtesse d'Egmont Pignatelli in Spanish Costume by Alexander Roslin (Minneapolis Institute of Art)
The Comtesse d'Egmont Pignatelli reclines in an opulent van Dyck revival satin dress in this 1763 Roslin portrait.
This is recreated 1600s or maybe 1500s style done in the 1700s. 1600s revival was popular in the 1700s. According to Ribeiro in Dress in the Eighteenth Century, pp. 276 - 279 (2002), the Rubens picture of his wife Helena Fourment, was inspiration for dress in England. Gustavus III of Sweden also liked Rubenesque revival (although it was misnamed "Vandyke" back then) and this sitter is associated with Gustavus III.
According to the Minneapolis Institute of Art (MIA): "The MIA has purchased a beautiful and important full-length portrait by Alexander Roslin (1718 - 1793), one of the preeminent painters at the court of King Louis XV of France. Completed in 1763, the painting depicts the Comtesse d'Egmont Pignatelli, who was among the most celebrated women in eighteenth-century Paris...One of Roslin's most ravishing society portraits, the oil painting depicts the young and lovely Septimanie de Richelieu (1740-1773) in a relaxed pose, with an open book in her hand, and a small dog by her side. The daughter of the duc de Richelieu, Septimanie married the Casimir Pignatelli, the Comte d'Egmont, when she was sixteen years old, becoming the Comtesse d'Egmont Pignatelli. When this painting was commissioned, the comtesse was twenty-three, and at the height of her fame. She was beautiful, intelligent and a frequent guest at the salon of Madame Geoffrin, the confidante of Madame de Pompadour. She was also a key figure at the court of the French king, a close friend of the King of Sweden, Gustav III, and an acquaintance of some of the most important artistic and literary figures of her day. The Comtesse d'Egmont died at age thirty-three from tuberculosis..."