The Wilton Diptych () is a small portable diptych of two hinged panels, painted on both sides, now in the National Gallery, London. It is an extremely rare survival of a late medieval religious panel painting from England. The diptych was painted for King Richard II of England, who is depicted kneeling before the Virgin and Child in what is known as a donor portrait. He is presented to them by (left to right) the English saints King Edmund the Martyr, King Edward the Confessor and patron saint, John the Baptist. The painting is an outstanding example of the International Gothic style, and the nationality of the unknown artist is probably French or English. Description The Wilton Diptych is painted on two panels of Baltic oak, set in frames of the same material and joined by two hinges so that it may be closed to protect the inner painting. The inner faces of the panels are in excellent condition for their age, though some glazes have been lost, and the outer faces have paint losses from handling. The painting is in tempera, the ground paint being mixed with egg yolk and laid in thin glazes. The background and many details are inlaid with gold leaf and in places the panel has been tooled beneath the gilding to enhance the decorative quality. In the panel with the Virgin and Christ Child, the garments are universally blue, the pigment coming from the semi-precious stone lapis lazuli. Richard's robe uses vermilion, another expensive pigment. Some colours have faded; the roses in the angels' hair would originally have been a much deeper pink, and the green grass of the outer hart panel is now much darker than when painted. Although the figures of the two inner scenes face each other, and interact by gaze and gesture, they are set in different backgrounds. The human figures are on bare rocky ground, with a forest behind, and a gold leaf "sky" decorated with a pattern made by a metal punch. The heavenly figures stand in a flowery meadow, behind which is a gold background patterned by a different punch. In the left inner panel the kneeling King Richard II is presented by Saints John the Baptist, Edward the Confessor and Edmund the Martyr, each holding their attribute. In the right-hand panel the Virgin Mary with the Christ Child in her arms is surrounded by eleven angels,