The National Portrait Gallery, where the painting is currently housed, simply describes it as a portrait of an unknown woman. The lady in the painting is wearing a dark blue (?) dress with bands (guards) of gold embroidery down the sleeves and possibly at the waist as well. The sleeve cuffs of her chemise are decorated with a scrolling floral design in blackwork. Under her headdress she is wearing a white coif.
National Portrait Gallery online catalogue (retrieved 11 March 2016)
GVE