Unfolding the Netherlandish Diptych. The exhibition includes 89 paintings, presenting 36 complete diptychs or pairs of paintings, reuniting some panels that have been separated for centuries, with 22 pairs on loan in the United States for the first time. Often small and depicting religious images as well as portraits of donors, the diptychs were painted by such Renaissance masters such as Jan van Eyck, Hugo van der Goes, Hans Memling, and Rogier van der Weyden.