Gospel purporting to depict the life of Jesus; shows strong Muslim influence. Almost certaintly a Medieval forgery, made for purposes of Muslim propaganda, it existed in at least two manuscripts, the Italian and the Spanish. The Italian manuscript survives in a library in Austria, while the Spanish manuscript was lost in the eighteenth or nineteenth centuries; however an eighteenth century copy of the original Spanish manuscript was discovered in the 1970s in the University of Sydney's Fisher library.
The Italian manuscript contains chapter rubrics and margin notes in Arabic; the margin notes form a rough Arabic translation of selected passages.
The Gospel of Barnabas was little known outside academic circles until recent times, when a number of Muslims have taken to publishing it in order to attempt to refute Christianity.