The Great Controversy The Great Controversy | Page 687

Pseudo-Isidore took as the basis of his forgeries a collection of valid
canons called the Hispana Gallica Augustodunensis, thus lessening the
danger of detection, since collections of canons were commonly made
by adding new matter to old. Thus his forgeries were less apparent when
incorporated with genuine material. The falsity of the Pseudo-Isidorian
fabrications is now incontestably admitted, being proved by internal
evidence, investigation of the sources, the methods used, and the fact
that this material was unknown before 852. Historians agree that 850 or
851 is the most probable date for the completion of the collection, since
the document is first cited in the Admonitio of the capitulary of Quiercy,
in 857.
The author of these forgeries is not known. It is probable that they

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