This is the first attempt to investigate the background to the gift of the Holy Blood to Westminster by King Henry III in 1247. Recently the archives of Westminster Abbey have yielded important new material relating to this extraordinary event, including a letter from the patriarch of Jerusalem that describes the relic in detail. This study offers both a commentary on this newly-discovered letter, and an overview of the extraordinary history of the relics of Christ's blood, their origin, distribution, and place in popular devotion.
Professor Nicholas Vincent of the University of East Anglia has published a dozen books and some hundred articles on twelfth- and thirteenth-century history for both scholarly and popular audiences, including work on the English and European context of Magna Carta as well as Magna Carta: A Very Short Introduction (Oxford, 2012). When a 1297 issue of Magna Carta recently came up for auction, Professor Vincent was commissioned by Sotheby’s to write the catalogue. During his research he discovered two previously unidentified originals of Magna Carta. For the Magna Carta Project he has been searching archives across Britain, Ireland and France for the charters of King John.