Portrait of Louise de Keroualle, Duchess of Portsmouth, about 1671-1674. Additional Info: Louise de Keroualle, the duchess of Portsmouth, sits in front of a window open to a lush landscape. Her loosely draped blue silk dress reveals the creamy skin of her chest and neck. In a pose both sensual and elegant, with her head slightly turned, Louise de Keroualle looks down at the viewer as she plays with a thick, lush strand of her abundant hair. Her features - almond-shaped eyes, gently arched eyebrows, a straight nose, and full red lips - epitomized ideal beauty of the late 1600s.