The Treaty of Verdun is signed on August 10, 843, ending the Carolingian civil war and dividing the Carolingian Empire between Lothair I, Louis II and Charles the Bald, the surviving sons of the emperor Louis I also known as Louis the Pious who was Charlemagne's son and successor. The treaty ended the civil war and set the stage for modern France and Germany.
The treaty was the culmination of negotiations lasting more than a year. It was the first in a series of partitions contributing to the dissolution of the empire created by Charlemagne, Louis I father and foreshadowing the formation of many of the modern countries of western Europe. The treaty was the first of the four partition treaties of the Carolingian Empire, followed by the Treaties of Prüm (855), Meerssen (870), and Ribemont (880). More