Duchy of Normandy
The Duchy of Normandy grew out of the 911 Treaty of Saint-Clair-sur-Epte between King Charles III of West Francia and the Viking leader Rollo. The duchy was named for its inhabitants, the Normans.
From 1066 until 1204, as a result of the Norman Conquest of England, the dukes of Normandy were usually also kings of England, the only exceptions being Dukes Robert Curthose, Geoffrey Plantagenet, and Henry II, who became king of England in 1154.
In 1202, Philip II of France declared Normandy forfeit to him and seized it by force of arms in 1204. It remained disputed territory until the Treaty of Paris of 1259, when the English sovereign ceded his claim except for the Channel Islands. With the mainland portions of the Duchy absorbed into the French Royal Domain, the now much smaller Duchy continued to exist under the authority of the English sovereign until it was split into the Bailiwicks of Guernsey and Jersey around 1290 by Otto de Grandson.
In the Kingdom of France, the duchy was occasionally set apart as an appanage to be ruled by a member of the royal family. After 1469, however, it was permanently united to the royal domain, although the title was occasionally conferred as an honorific upon junior members of the royal family. The last French duke of Normandy in this sense was Louis-Charles, duke from 1785 to 1792.
The title "Duke of Normandy" continues to be used in an informal manner in the Channel Islands, to refer to the monarch of the United Kingdom. There is no definite end as to when the Duchy of Normandy as a vassal of the English monarch became 'part' of the United Kingdom, with history blending the link between the two gradually. In official documents in Guernsey, the British monarch is entitled "Duke of Normandy", while in official documents in Jersey, the British monarch is ambiguously titled Sovereign. As such, although no form of the Duchy or its structure exists, there has never been a formal end to the "duke's" rule over the islands.
History
Origins
The first Viking attack up the Seine river took place in 820. By 911, the area had been raided many times and there were even small Viking settlements on the lower Seine. The text of the Treaty of Saint-Clair-sur-Epte has not survived. It is only known through the historian Dudo of Saint-Quentin, who was writing a century after the event. The exact date of the treaty is unknown, but it was likely in the autumn of 911. By the agreement, Charles III, king of the West Franks, granted to the Viking leader Rollo some lands along the lower Seine that were apparently already under Danish control. Whether Rollo himself was a Dane or a Norwegian is not known. For his part, Rollo agreed to defend the territory from other Vikings and that he and his men would convert to Christianity. Rollo's decision to convert and come to terms with the Franks came in the aftermath of his defeat at the battle of Chartres by Richard of Burgundy and Robert of Neustria earlier in 911.The territory ceded to Rollo comprised the pagi of the Caux, Évrecin, Roumois and Talou. This was territory formerly known as the county of Rouen, and which would become Upper Normandy. A royal diploma of 918 confirms the donation of 911, using the verb adnuo. There is no evidence that Rollo owed any service or oath to the king for his lands, nor that there were any legal means for the king to take them back: they were granted outright. Likewise, Rollo does not seem to have been created a count or given comital authority, but later sagas refer to him as Rúðujarl.
The Norman polity had to contend with the Frankish and Breton systems of power that already existed in Normandy. In the early 10th century, Normandy was not a political or monetary unit. According to many academics, "the formation of a new aristocracy, monastic reform, episcopal revival, written bureaucracy, saints’ cults – with necessarily different timelines" were as important if not more than the ducal narrative espoused by Dudo. The formation of the Norman state also coincided with the creation of an origin myth for the Norman ducal family through Dudo, such as Rollo being compared to a "good pagan" like the Trojan hero Aeneas. Through this narrative, the Normans were assimilated closer to the Frankish core as they moved away from their pagan Scandinavian origins.
Norse settlement
There were two distinct patterns of Norse settlement in the duchy. In the Danish area in the Roumois and the Caux, settlers intermingled with the indigenous Gallo-Romance-speaking population. Rollo shared out the large estates with his companions and gave agricultural land to his other followers. Danish settlers cleared their own land to farm it, and there was no segregation of populations.In the northern Cotentin on the other hand, the population was purely Norwegian. Coastal features bore Norse names as did the three pagi of Haga, Sarnes and Helganes. The Norwegians may even have set up a þing, an assembly of all free men, whose meeting place may be preserved in the name of Le Tingland, near Jobourg.
Within a few generations of the founding of Normandy in 911, however, the Scandinavian settlers had intermarried with the natives and adopted much of their culture. But in 911, Normandy was not a political nor monetary unit. Frankish culture remained dominant and according to some scholars, 10th century Normandy was characterized by a diverse Scandinavian population interacting with the "local Frankish matrix" that existed in the region. In the end, the Normans stressed assimilation with the local population. In the 11th century, the anonymous author of the Miracles of Saint Wulfram referred to the formation of a Norman identity as "shaping all races into one single people".
According to some historians, the idea of "Norman" as a political identity was a deliberate creation of the court of Richard I in the 960s as a way to "create a powerful if rather incoherent sense of group solidarity to galvanize the duchy's disparate elites around the duke".
Norman rule
Starting with Rollo, Normandy was ruled by an enduring and long-lived Viking dynasty. Illegitimacy was not a bar to succession and three of the first six rulers of Normandy were illegitimate sons of concubines. Rollo's successor, William Longsword, managed in expanding his domain and came into conflict with Arnulf of Flanders, who had him assassinated in 942. This led to a crisis in Normandy, with a minor succeeding as Richard I, and also led to a temporary revival of Norse paganism in Normandy. Richard I's son, Richard II, was the first to be styled duke of Normandy, the ducal title becoming established between 987 and 1006.In 924, King Radulf extended Rollo's county westward up to the river Vire, including the Bessin, where some Danes from England had settled not long before. In 933, King Radulf granted the Avranchin and Cotentin to Rollo's son and successor, William Longsword. These areas had been previously under Breton rule. The northern Cotentin had been settled by Norwegians coming from the region of the Irish Sea. There was initially much hostility between these Norwegian settlers and their new Danish overlords. These expansions brought the boundaries of Normandy roughly in line with those of the ecclesiastical province of Rouen.
The Norman dukes created the most powerful, consolidated duchy in Western Europe between the years 980, when the dukes helped place Hugh Capet on the French throne, and 1050. Scholarly churchmen were brought into Normandy from the Rhineland, and they built and endowed monasteries and supported monastic schools, thus helping to integrate distant territories into a wider framework. The dukes imposed heavy feudal burdens on the ecclesiastical fiefs, which supplied the armed knights that enabled the dukes to control the restive lay lords but whose bastards could not inherit. By the mid-11th century the Duke of Normandy could count on more than 300 armed and mounted knights from his ecclesiastical vassals alone. By the 1020s the dukes were able to impose vassalage on the lay nobility as well. Until Richard II, the Norman rulers did not hesitate to call Viking mercenaries for help to get rid of their enemies around Normandy, such as the king of the Franks himself. Olaf Haraldsson crossed the Channel in such circumstances to support Richard II in the conflict against the count of Chartres and was baptized in Rouen in 1014.
In 1066, Duke William defeated Harold II of England at the Battle of Hastings and was subsequently crowned King of England, through the Norman conquest of England. Anglo-Norman and French relations became complicated after the Norman Conquest. The Norman dukes retained control of their holdings in Normandy as vassals owing fealty to the King of France, but they were his equals as kings of England. Serfdom was outlawed around 1100.
From 1154 until 1214, with the creation of the Angevin Empire, the Angevin kings of England controlled half of France and all of England, dwarfing the power of the French king, yet the Angevins were still de jure French vassals.
The Duchy remained part of the Angevin Empire until 1204, when Philip II of France conquered the continental lands of the Duchy, which became part of the royal domain. The English sovereigns continued to claim them until the Treaty of Paris but in fact kept only the Channel Islands. Having little confidence in the loyalty of the Normans, Philip installed French administrators and built a powerful fortress, the Château de Rouen, as a symbol of royal power.
After the absorption of the mainland portion of the Duchy into the royal domain of France, the Duchy, now confined to the Channel Islands, continued to exist under the English Crown until it was split around 1290 into the Bailiwicks of Guernsey and Jersey by Otto de Grandson, who was Lord of the Channel Islands since his appointment in 1277 by Edward I of England.