AD 911

AD 911 refers to the year 911 in the Anno Domini (AD) dating system, which is based on the traditionally reckoned year of the birth of Jesus of Nazareth. The year 911 falls within the 10th century.

Significant events that are often associated with the year AD 911 include:

• The death of Louis the Child, the last Carolingian ruler of East Francia (Germany). His death led to the election of Conrad I as the first non-Carolingian King of Germany, marking a significant shift in power dynamics within the region and the eventual rise of the Ottonian dynasty. This election also solidified the separate development of the East Frankish kingdom from West Francia (modern-day France).

• Rollo's settlement in Normandy. While the formal Treaty of Saint-Clair-sur-Epte between Charles the Simple and Rollo, granting Rollo land in Normandy, is often dated to 911, the process of Rollo's Norsemen establishing a presence in the area had likely been ongoing for some time prior. The treaty formalized the arrangement, establishing the Duchy of Normandy and granting Rollo the title of Duke. This settlement had long-lasting effects on both France and England.

The events of AD 911 are significant in understanding the political and territorial landscape of Europe during the Early Middle Ages, especially the fragmentation of the Carolingian Empire and the rise of new political entities.