Commissioned by wealthy patrons in the Middle Ages, the Haggadot are among the most beautifully decorated Hebrew manuscripts. The Brother Haggadah--so-called because of its close, fraternal relationship to the Rylands Haggadah in the collection of the John Rylands Library, Manchester--is one of the finest of these to have survived. Created by Sephardi (or "southern") artists and scribes in Catalonia in the second quarter of the fourteenth century,...