Not only did she immortalize the biker short and crewneck look, her looks also often made subtle commentary on the royal family and her place within Buckingham Palace (case in point, her off-the shoulder black, revenge dress). Another such item of clothing? Her “One Black Sheep” sweater. From a small brand called Warm and Wonderful and worn to a polo match in 1981, the red, wool sweater was patterned with white sheep save for one black sheep on the front.