The feast of Corpus Christi, one of the most solemn feasts of the Latin Church, can be traced to the Fourth Lateran Council in 1215 and its resolution of disputes over the nature of the Eucharist. The feast was first celebrated in Liege in 1246, thanks largely to the efforts of a religious woman, Juliana of Mont Cornillon, who not only popularized the feast, but also wrote key elements of an original office.

This volume presents for the first time a complete set of source materials germane to the study of the feast of Corpus Christi. In addition to the multiple versions of the...