Elisabeth of Schönau, Saint. [Letter to Gerlach, the abbot of Deutz, undated] in Die Visionen und Briefe der heiligen Elisabeth 6.141-42

[Letter from Elisabeth of Schönau to Gerlach, the abbot of Deutz]
Elisabeth describes a vision to comfort the abbot about an accidental mishap with the Eucharist.
Online at Epistolae (See also Bibliographia record).