Treaty of Meerssen Re-divides the Carolingian Empire
On August 8, 870, the Treaty of Meerssen was concluded between Louis the German and Charles the Bald, grandsons of Charlemagne. Meeting near the modern Dutch town of Meerssen, they carved up the kingdom of their deceased brother Lothair II, further fragmenting the once-unified Carolingian Empire. According to surviving charters, the agreement reshuffled large stretches of Lotharingia—territory that lay between what is now France and Germany. These shifting frontiers helped set the stage for the later emergence of distinct French and German realms in Western Europe.