The comparative analysis of several texts dating back from the 10th and 11th centuries. among which the Planctus on the death of Guillaume the long sword. the volumes II and III of the work by Dudon of St Quentin. the History of France by Richer of Reims and the Gesta of Jumièges. https://chefesquipmenters.shop/product-category/pizza-oven-brushes/