La "Crónica de Ibargüen": curioso descubrimiento del Sr. Areitio

The "Chronicle of Ibargüen" does not seem have been written by Ibargüen, who was only the collaborator of an author that could have been the son of Doctor García Fernández Cachupín. The work was made up of 184 notebooks. Fifty-nine of them remain and most of them are historical works. The book is from the XVI century