A medieval English one of these paintings shows the Virgin Mary on the right, flanked by a group of angels in blue; that one from the reign of Richard II is named for Wilton House. One of these works by Andy Warhol juxtaposes coloured and black-and-white versions of his Marilyn Monroes. Lucas Cranach the Elder painted several works of this type in which Adam scratches his head on the left. A depiction in profile of Federico da Montefeltro, the leader of Urbino, was made as part of one by Piero della Francesca. Another one, in which four men hold books, a scroll, keys, and a sword, is Albrecht Durer's The Four Apostles. Most classically, these
A medieval English one of these paintings shows the Virgin Mary on the right, flanked by a group of angels in blue; that one from the reign of Richard II is named for Wilton House. One of these works by Andy Warhol juxtaposes coloured and black-and-white versions of his Marilyn Monroes. Lucas Cranach the Elder painted several works of this type in which Adam scratches his head on the left. A depiction in profile of Federico da Montefeltro, the leader of Urbino, was made as part of one by Piero della Francesca. Another one, in which four men hold books, a scroll, keys, and a sword, is Albrecht Durer's The Four Apostles. Most classically, these art objects contain a single hinge. For 10 points, name this type of set of paintings with coordinated subject matter across their two panels.