The Marquesa de Santiago stands full-length in front of a landscape of gently sloping hills. Well-born, very wealthy, and a commanding presence, she confronts the viewer directly. Her white lace mantilla extends to her knees, and she holds a closed fan in her left hand. Heavily applied make-up accentuates her features. Known for her dissolute lifestyle, the Marquesa died at the age of forty-three, three years after this portrait was made.