Contro Roma e contro Gregorio Palamas. Il manoscritto Città del Vaticano, BAV, Barb. gr. 291 da Costantinopoli a Leone Allacci

Leo Allatius, and later Giovanni Mercati, had already appreciated the importance of the manuscript Città del Vaticano, BAV Barb. gr. 291 as a unique testimony of works, linked to the anti-Latin and anti-Palamite controversy, otherwise lost. This article is the first detailed and comprehensive study devoted to the Barberinianus. The first part, dedicated to codicological and palaeographic analysis and to the history of the manuscript, is followed by a second part that introduces the collection of texts against the Latins and a third part that examines the collection of works related to the Palamite controversy. Two anonymous anti-Palamite works are published in the appendix. The results of the codicological and palaeographic analysis and the study of the two collections allow us to date the composition of the collection to the third quarter of the 14th century