Norman conquest and feudal warfare 1066-1215
The Battle of Hastings and Norman Conquest
On 14 October 1066, William, Duke of Normandy, defeated King Harold Godwinson at the Battle of Hastings. Harold was killed — traditionally said to have been struck by an arrow — and the English army collapsed. William marched to London and was crowned King of England at Westminster Abbey on Christmas Day 1066. The Norman Conquest was one of the most transformative events in English history, replacing the Anglo-Saxon ruling class with Norman lords almost entirely within a generation.
English resistance did not collapse immediately. The north of England rose repeatedly in 1067–70. In 1069, a Danish fleet landed in support of the northern rebels, and William responded with the devastating Harrying of the North. Contemporary accounts describe mass death from starvation and cold across Yorkshire. Chronicler Orderic Vitalis, writing in the early twelfth century, wrote that more than 100,000 people died of starvation and that bodies were left to rot where they fell. Historians continue to debate the scale of the destruction, but Domesday Book (1086) records large areas of Yorkshire as “waste,” confirming long-term depopulation.
William I’s Harrying of the North (1069–70) was a deliberate scorched-earth campaign to crush northern resistance. Domesday Book (1086) records extensive areas of Yorkshire as “waste,” suggesting lasting depopulation and economic destruction.
Castle-Building and Military Control
The Normans used castles as instruments of conquest and control. The earliest were motte-and-bailey castles: quick to build using forced local labour and highly effective as garrison points. Within a decade of 1066, hundreds had been built across England. Some, like the Tower of London, were rebuilt in stone as permanent symbols of Norman power.
Castles served multiple functions: they housed garrisons to suppress rebellion, provided bases for rapid military response, and demonstrated the physical dominance of Norman lords over the surrounding population. They also disrupted existing communities — in some towns, houses were demolished to make way for castle construction. The castle-building programme was funded partly through the feudal system.
The Norman feudal system reorganised English society around military obligation. The king held all land and granted it to tenants-in-chief (great barons and bishops) in exchange for knight service — the provision of armed knights for royal campaigns. Barons sublet land to knights, who in turn held peasant farmers (villeins) who worked the land and owed labour services.
The Domesday Book of 1086 recorded all landownership in England, allowing William to assess who held land, how much military service they owed and what taxes could be raised. It was the most detailed administrative survey in medieval Europe and gave the Crown an unprecedented picture of its resources.
Feudal Breakdown: Stephen and The Anarchy
The feudal system depended on a strong king keeping barons loyal through a mixture of reward and force. When Henry I died in 1135 without a male heir, England plunged into civil war between his daughter, Empress Matilda, and his nephew, Stephen. The period 1135–54 is known as The Anarchy because of the breakdown of royal authority.
Contemporary chronicler the “Peterborough Chronicler” described barons building unlicensed castles and oppressing the common people with impunity — “it was said openly that Christ and his saints slept.” The civil war demonstrated a fundamental weakness in the feudal system: when competing claimants each sought baronial support by granting concessions, central authority collapsed and lords acted as local warlords. Order was only restored when Stephen agreed the Treaty of Wallingford (1153), recognising Matilda’s son Henry as his heir.
A second major feudal breakdown came under King John (1199–1216). John lost Normandy to France in 1204, making him deeply unpopular with barons who had estates on both sides of the Channel. His attempt to win it back collapsed when his allies were beaten at the Battle of Bouvines in 1214. His demands for money — through scutage (a tax in place of military service) and arbitrary fines — broke the feudal compact. In 1215, barons forced John to sign Magna Carta, which placed limits on royal taxation and arbitrary imprisonment.
John repudiated Magna Carta almost immediately. The First Barons’ War (1215–17) followed, with rebel barons inviting the French prince Louis to claim the English throne. John’s death in 1216 changed the situation: his nine-year-old son Henry III reissued Magna Carta as a peace offering, and the regent William Marshal defeated the French at the Battle of Lincoln (1217), ending the war. Magna Carta survived as a foundation document limiting royal power.
The feudal system was built on the relationship between king and barons. When that relationship broke down — through disputed succession (The Anarchy) or royal overreach (John) — the same barons who were supposed to provide military service instead turned their forces against the Crown.