Interrogatio Iohannis (Secret Supper; Liber Sancti Iohannis)
12th c. (Latin version) · Latin (from Slavonic/Greek)
Groups: Bogomils, Cathars (Albigensians)
Its colophon says Nazarius, the Cathar bishop of Concorezzo, brought it from Bulgaria. It is a dialogue in which Christ reveals Satan's creation of the world.
Where the manuscripts are now
Austrian National Library, Vienna, Austria
Latin MS (shelfmark not verified)
Bibliothèque municipale, Dôle, France
Latin MS (shelfmark not verified)
Lost Carcassonne inquisition copy, printed by J. Benoist 1691
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Sources
No open translation is linked. The status note says how the text is known.