One theory that occurs in some modern histories concerns the "Rescript of Honorius", holding that it refers to the cities of the Bruttii (who lived at the "toe" of Italy in modern Calabria), rather than to the cities of the Britons. The suggestion is based on the assumption that the source (Zosimus) or a copyist made an error and actually meant "Brettia" when "Brettania" was written, and noting that the passage that contains the "Rescript" is otherwise concerned with events in northern Italy.