Migration Before 1066 and the Norman Conquest

England’s population had already been shaped by migration

Population diversity means that people within a society have different origins, languages or cultural traditions. England did not first encounter migration in 1066. Earlier arrivals had already helped shape its population and language.

Roman settlers introduced Latin speakers to Britain from AD 43, where Celtic languages were spoken. Anglo-Saxon settlement in the fifth and sixth centuries then established Germanic languages from which Old English developed. These earlier movements help explain the background to England around the year 1000: its population had a history of migration rather than a single, unchanged origin.

Old English was not just a spoken language. It was used for laws, legal documents and literature. Latin remained important as the language of the Church, but missionaries arriving from Rome around 600 needed interpreters who could speak Old English.

Scandinavian arrivals: from raiding to settlement

Scandinavian raids were recorded from the late eighth century. They became more frequent from the 830s and more serious from the 860s. Migrants came mainly from Denmark and southern Sweden, which was then ruled by Danish kings.

The opportunity to obtain valuable goods attracted raiders: this was a pull factor. Chiefs arrived with groups of followers, sometimes numbering hundreds. They travelled to eastern England by boat, obtained horses and used Roman roads to raid inland.

However, raiding was only part of the story. Some groups left with their loot, while others made peace and settled. This distinction matters: an invading army could become a settled community, changing both its own way of life and the society around it.

Making peace and living together

King Alfred ruled from 871 to 899. In May 878, his army defeated the Scandinavian leader Guthrum at Edington. The peace that followed included Guthrum’s baptism as a Christian, along with 29 of his leading men. Alfred became Guthrum’s godfather, giving their agreement a religious and personal connection.

In 879, Guthrum’s army settled in East Anglia. The treaty between Alfred and Guthrum, dated to 878 or 886, provides evidence of how English and Danish communities could live alongside one another. It recognised shared approaches to justice, including compensation for killings, and made arrangements for trade and movement across their boundary with the relevant king’s permission.

Integration was helped by similarities between the communities. Old English and Scandinavian languages were related, making communication easier. Both societies also understood kingship, loyalty to leaders and distinctions between different social ranks.

There is concrete evidence of cultural mixing. Danish settlers adopted Anglo-Saxon burial customs, intermarried with local people and borrowed names. Guthrum minted coins using his Christian name, Athelstan. The place-name Grimston combines a Danish first element with an English second element: a small but revealing example of traditions coming together.

Settlement also left a geographical legacy. Hundreds of place-names ending in -by, associated with Scandinavian settlement, occur on Guthrum’s side of the treaty boundary, with hardly any on Alfred’s side. Place-names can therefore help historians trace the lasting influence of migration.

Conflict and integration could exist together

Peace did not mean that conflict disappeared. In 885, the Scandinavian army in East Anglia broke the peace. Nevertheless, evidence of shared customs, trade and intermarriage shows why it is misleading to describe all Scandinavians only as violent outsiders.

Some Christian writers portrayed Scandinavian attackers as pagans sent by God to punish sinful people. Such accounts reveal hostile responses to newcomers, but they do not describe every migrant’s experience. Historians compare written accounts with evidence from archaeology and language to build a fuller picture.

The Norman Conquest brought a new ruling minority

The Norman Conquest introduced a different pattern of migration: military conquest followed by settlement. After Edward the Confessor died in January 1066, Harold became king, but William, Duke of Normandy, claimed the throne. William was also attracted by England’s wealth, including income from land and taxation, which could reward his followers.

William’s invasion force included Normans, Bretons, Flemings and other French soldiers. He defeated Harold at Hastings in October and was crowned at Westminster Abbey on Christmas Day 1066. His army is estimated at around 5,000–8,000 men, compared with an English population of roughly 1.5–2 million. These are estimates, but they show the central contrast: a relatively small incoming group gained power over a much larger population.

The first arrivals were chiefly a military elite, not a mass movement of poor people seeking employment. Married soldiers could bring wives and children from France. Over approximately the next century, further settlers of different social ranks arrived from western France. Conquest therefore created opportunities for continuing migration.

Land and Church leadership changed hands

William confiscated land from English landholders and rewarded his followers with estates. He justified confiscation by treating Harold’s supporters as traitors. Land gave the newcomers income, status and authority over the people living on it, making settlement attractive and helping secure their loyalty to William.

The Domesday Book, compiled in 1086, records landholding before and after the conquest. Comparing its entries shows that most land was in French hands by 1086. Many English people now held their land as tenants under incoming lords rather than under English landholders.

Leadership of the Church also changed. Lanfranc became Archbishop of Canterbury in 1070 and helped appoint Norman bishops. Norman influence therefore extended beyond the monarchy and aristocracy into another powerful institution.

This was a major political and social change, even though most inhabitants remained English. The impact of migration depended not simply on how many people arrived, but on the positions they occupied.

English resistance continued after 1066

William’s coronation did not mean that everyone accepted Norman rule. Loss of land and influence, loyalty to the former English ruling family, and resentment of Norman control encouraged resistance.

In 1067, Edric the Wild led resistance on the Welsh border with support from Welsh princes. In 1068, Exeter, where supporters of Harold’s family lived, refused to swear loyalty to William. William besieged the city, secured its surrender and built a castle to strengthen his control. That year, the English earls Edwin and Morcar also rebelled after losing land and importance, supporting Edgar Ætheling as an alternative king.

The most dangerous northern rising came in 1069, when rebels including Edgar Ætheling received support from a Danish fleet. This shows how England’s connections with the wider world could sustain opposition as well as bring newcomers: Danish forces could help English opponents challenge the Norman king.

William responded with military force and castle-building. A motte-and-bailey castle consisted of a raised earth mound with a tower, beside an enclosed courtyard. Castles housed soldiers and supplies, provided bases for controlling surrounding areas and visibly demonstrated Norman authority. Rebels did not maintain united leadership, while William could use these strongholds and reward loyal followers with confiscated land.

The Harrying of the North punished the population

In the winter of 1069–1070, William carried out the Harrying of the North to crush northern resistance and deter further rebellion. His forces destroyed villages, crops, livestock and tools, depriving rebels of supplies.

The destruction also struck people who were not fighting. Loss of food and the means to produce it caused famine and lasting depopulation. The exact death toll is uncertain, but the campaign’s consequences were severe. The conquest brought not only new rulers and settlers, but also violence and hardship for the existing population.

Resistance at Ely and the revolt of 1075

In 1070–1071, Hereward led resistance in the Fens of eastern England. He worked with Danish forces, and the English earl Morcar later joined him. The marshland around Ely made it difficult for Norman troops to reach the rebels, allowing Hereward to use ambushes and local knowledge.

William eventually overcame the defences in 1071, after monks revealed a route through the marshes. Morcar was captured; Hereward escaped. The fall of Ely ended this major centre of English resistance, though it did not mean that every opponent had been captured.

Opposition was not exclusively English. In 1075, the Norman earls Roger de Breteuil and Ralph de Gael plotted rebellion because they resented restrictions on their power. The English earl Waltheof was also implicated. Royal supporters suppressed the revolt; Roger and Ralph lost their lands and titles, and Waltheof was executed. Being a Norman immigrant did not guarantee agreement with William’s rule.

Marriage brought mixing, but not always equal choice

Some English women faced threats of violence or forced marriage after the conquest. A letter written by Lanfranc in the late 1070s referred to women who had entered religious communities ‘out of fear of the French’. It provides evidence that some sought refuge from the newcomers, although it does not establish the experience of every woman.

Marriage could also connect English and Norman families and help secure land and political alliances. For example, the English landholder Wigot of Wallingford arranged for his daughter Ealdgyth to marry William’s follower Robert d’Ouilly. Such marriages could encourage integration, but the unequal distribution of power meant they were not always freely chosen relationships between equals.

Over generations, living alongside one another and intermarrying helped the populations mix. In the mid-1180s, the author of the Dialogue of the Exchequer wrote that English and Normans had become difficult to distinguish among people of free birth. This suggests gradual integration, not an immediate disappearance of divisions in 1066.

French influence changed English without replacing it

The French-speaking ruling elite made French important at the royal court and in legal affairs. French influence added many Romance, or Latin-derived, words to English. Modern English consequently contains words from different linguistic backgrounds: ‘seldom’ is Germanic, while ‘rarely’ is Latin-derived.

This was change without complete replacement. The Old English foundation survived and developed into Middle English. By the fourteenth and fifteenth centuries, that English base remained widespread.

The conquest therefore combined sharp changes in power and landownership with slower cultural mixing. Like Scandinavian settlement, it left lasting linguistic influences; unlike a simple story of peaceful integration, its early impact included dispossession, resistance and violent repression.