Vermandois was a French county that appeared in the Merovingian period. Its name derives from that of an ancient tribe, the Viromandui. In the 10th century, it was organised around two castellan domai

The Congress of Arras was a diplomatic congregation established at Arras in the summer of 1435 during the Hundred Years' War, between representatives of England, France and Burgundy. It was the first