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North Sea EmpireNordsøimperiet (Danish) Nordsjøveldet (Norwegian)
1013–1042
The dominions of Cnut the Great.
Status	Personal union of Denmark, Norway and England
Capital	Winchester, Wessex, Kingdom of England
Common languages	Old Norse, Old English
Religion	Christianity, Norse paganism
Government	Personal union monarchy
King
• 1013–1014	Sweyn Forkbeard
• 1016–1035	Cnut the Great
• 1040–1042	Harthacnut
Historical era	Viking Age
• Sweyn Forkbeard conquers England	1013
• Battle of Assandun and Cnut the Great became King of England	1016
• Cnut the Great became King of Denmark	1018
• Battle of Helgeå	1026
• Death of Harthacnut	1042
Preceded by Succeeded by Kingdom of Denmark Kingdom of Norway Kingdom of England Kingdom of Denmark Kingdom of Norway Kingdom of England

The North Sea Empire, also known as the Anglo-Scandinavian Empire, was the personal union of the kingdoms of England, Denmark and Norway for most of the period between 1013 and 1042 towards the end of the Viking Age. This ephemeral Norse-ruled empire was a thalassocracy, its components only connected by and dependent upon the sea.

The first king to unite all three kingdoms was Sweyn Forkbeard, king of Denmark since 986 and of Norway since 1000, when he conquered England in 1013. He died in the following year, and his realm was divided. His son Cnut the Great acquired England in 1016, Denmark in 1018 and Norway in 1028. He died in 1035 and his realm was again divided, but his successor in Denmark, Harthacnut, inherited England in 1040 and ruled it until his death in 1042. At the height of his power, when Cnut ruled all three kingdoms (1028–1035), he was the most powerful ruler in western Europe after the Holy Roman Emperor.

Name

The term "North Sea Empire" was coined by historians at the beginning of the 20th century, although the conception of Cnut's domains as having constituted an empire can be found as early as 1623, in John Speed's Histoire of Great Britaine. Historically, the union was referred to by its individual parts: the kingdoms of Denmark, Norway, and England.

Formation

England

Cnut was the younger son of the Danish king Sweyn Forkbeard. When his father died on 3 February 1014 during an invasion of England, Cnut, who had been left in command of the fleet in the River Trent while Sweyn was in the south of England, was acclaimed by the Danes. However, the invasion fell apart: the men of the Kingdom of Lindsey, who had promised to supply horses for a tactical raid, were not ready before the English nobles had reinstalled King Æthelred (whom they had previously sent into exile), after forcing him to agree to govern less harshly.

Cnut's brother Harald became the King of Denmark, but with help from Eric Haakonsson of Norway, Cnut raised a new invasion fleet of his own and returned to England in the summer of 1015. The English were divided by intrigue among the king, his sons, and other nobles. Before the decisive battle for London could be fought, Æthelred died on 23 April 1016. The Londoners chose his son Edmund as their king, while most of the nobles met at Southampton and swore fealty to Cnut. Cnut blockaded London, but was forced to leave to replenish his supplies and was beaten by Edmund at the Battle of Otford; however, following the Danes as they raided into Essex, Edmund was in turn defeated at the Battle of Assandun. He and Cnut struck an agreement under which Edmund would retain Wessex and Cnut would rule all of England north of the River Thames. However, on 30 November 1016, Edmund in turn died, leaving Cnut as the King of England.

In the summer of 1017, he cemented his power by marrying Æthelred's widow, Emma, although he had previously married an English noblewoman, Ælfgifu of Northampton. In 1018, he paid off his fleet (with money especially from the citizens of London) and was fully recognised as King of England.

Denmark

King Harald died childless in 1018 or 1019, leaving the country without a king. Cnut was his brother's heir and went to Denmark in 1019 to claim it. While there he sent his subjects in England a letter saying he was abroad to avert an unspecified "danger", and he only returned to quell incipient rebellions. One Danish chronicle states that the Danes had previously deposed Harald in favour of Cnut, then brought back Harald because of Cnut's frequent absences, until Cnut finally became king permanently after his brother's death.

King Olaf II of Norway and King Anund Jacob of Sweden, seeing the combined Anglo-Danish kingdom as a threat – Cnut's father Sweyn had asserted power over both their countries – took advantage of Cnut's being in England to attack Denmark in 1025 or 1026, and were joined by Ulf Jarl, Cnut's Danish regent, and his brother. Cnut took Olaf's fleet by surprise and took the battle to the Swedish fleet at the Battle of the Helgeå. The precise outcome is disputed, but Cnut came out best; Olaf fled and the threat to Denmark was dispelled.

In 1027, Cnut travelled to Rome, partly to expiate his sin for having Jarl Ulf killed the previous Christmas, partly to attend the coronation of Conrad II as Holy Roman Emperor and to demonstrate his importance as a ruler. He secured relaxation of tolls levied on pilgrims journeying to Rome from Northern Europe, and on Papal fees for English archbishops receiving their pallium; he also began a relationship with Conrad that led to the Emperor's son Henry marrying Cnut's daughter Gunnhild and before that to the Emperor ceding to Denmark Schleswig and a strip of ancient Danish territory between Hedeby and the Eider that the Germans had occupied as a buffer zone against the Danes.

Norway

Olaf II had extended his power throughout Norway while Jarl Erik was with Cnut in England. Cnut's enmity with him extended further back: Æthelred had returned to England in a fleet provided by Olaf. In 1024, Cnut had offered to let Olaf govern Norway as his vassal; but after Helgeå, he set about undermining his unpopular rule with bribes, and in 1028 set out with 50 ships to subjugate Norway. A large contingent of Danish ships joined him, and Olaf withdrew into the Oslo Fjord while Cnut sailed along the coast, landing at various points and receiving oaths of allegiance from the local chieftains. Finally at Nidaros, now Trondheim, he was acclaimed king at the Eyrathing, and in a few months Olaf fled to Sweden.

In 1030, Olaf attempted to return, but the people of the Trondheim area did not want him back and he was defeated and killed at the Battle of Stiklestad.

Parts of Sweden

After Helgeå, Cnut also claimed to rule "part of Sweden" together with England, Denmark, and Norway. He may have had coins minted either in the capital, Sigtuna, or in Lund, then part of Denmark, with the inscription CNVT REX SW ("Cnut King of the Swedes"). Western Geatland or Blekinge have been suggested. It was probably either overlordship or disputed rule; Cnut did not have to be present in Sweden to order the minting of coins, coins were also minted asserting he ruled Ireland. These coins are however usually regarded as copies of coins minted in Denmark (curiously, coins stating that the Swedish king Olof Skötkonung was King of England have also been found in Sigtuna). Irish coinage and Swedish history at this early date is very uncertain.

Also, Anglo-Saxon sources state Anund Jakob won the Battle of Helgeå. If the Danes controlled Sweden they did only control Svealand for a maximum of 3 years before Anund ousted Cnut. In 1030, Anund is again in firm control according to sources of Sweden. Since Anund Jakob decided on bishops for all of Sweden, 1030 in Adam of Bremens source. Adam does not mention a Danish conquest in his description of Anunds reign 1030. Rather Anund Jakob and Sweden militarily supported Olaf the second in his attempts to regain the Norwegian throne from Cnut 1030.

Tributary areas

In addition to part of Sweden, of which he or the person who wrote the heading to his letter claimed he was king part of, Cnut received tribute from the Wends and was allied with the Poles; in 1022, together with Godwin and Ulf Jarl, he took a fleet east into the Baltic to confirm his overlordship of the coastal areas that the Danish kings dominated from Jomsborg.

Immediately after his return from Rome, Cnut led an army into Scotland and made vassals of Malcolm, the high king of Scotland, and two other kings, one of whom, Echmarcach mac Ragnaill, was a sea-king whose lands included Galloway and the Isle of Man and would become king of Dublin in 1036. All these and likely also the Welsh paid tribute, on the model of the Danegeld that Æthelred had instituted to pay off the Danes; and Cnut was thus reasserting the dominion over the Celtic kingdoms that recent English kings had had to let lapse, as well as punishing those who had supported Olaf against him. A verse by the Icelandic skald Óttarr svarti calls Cnut "king of the Danes, the Irish, the English and the Islanders"; presumably Norway is omitted because Cnut had not yet come to power there.

Religion

By the early 11th century, England had been Christian for centuries; the Danelaw was in transition from paganism to Christianity, but the Scandinavian countries were still predominantly pagan. Cnut's father, Sweyn, had initially been pagan but in later life had been basically Christian. In England, Cnut assiduously promoted the interests of the Church, and this brought him acceptance from the Christian rulers of Europe that no other Scandinavian king had previously been accorded. In Norway, in contrast, he built churches and was both respectful and generous to the clergy, but also made allies of the heathen chieftains, and unlike Olaf, did not make laws benefitting the Church until his power was on a solid footing.

Governance

Early in 1017, probably because he was king by right of conquest not more normal means, Cnut divided England into four earldoms on the Scandinavian model: Wessex he governed directly, and of his allies Thorkell the Tall became Earl of East Anglia, Eric Haakonsson retained Northumbria, which Cnut had already given him, and Eadric Streona became Earl of Mercia. But the last was disgraced and executed within a year. In 1018, Cnut revived at least two earldoms in Wessex and at a meeting at Oxford, his followers and representatives of the English agreed that he would govern under the laws of King Edgar.

Anglo-Saxon historian Frank Stenton points out that the Anglo-Saxon Chronicle has relatively little to say about Cnut's reign except to note his frequent travels abroad, indicating that he was in strong control of England. Thorkell likely acted as his regent during his absences, until they had a falling out and he was outlawed in 1021. The terms of their reconciliation in Denmark in 1023, with an exchange of sons for fosterage and Thorkell becoming Cnut's regent in Denmark, suggests that Thorkell had won them with an armed force.

However, it was left to another of Cnut's earls, Siward, to protect his earldom of Northumbria by consolidating English power in Scotland; at his death in 1055 he, not the king, was overlord of all the territory that the Kingdom of Strathclyde had annexed early the previous century.

The Danes had more reason to grumble about Cnut's absences than the English; he reigned primarily from England, leaving regents in charge in Denmark. He replaced Thorkell as his primary advisor in England with Godwin, an Englishman whom he made Earl of Wessex, while within three years of their reconciliation, he had also been replaced as regent of Denmark, by Ulf Jarl, Cnut's sister's husband, whom Cnut also made guardian of his son by Emma, Harthacnut. Ulf in turn proved less than loyal, first conspiring against him with the kings of Sweden and Norway, then making a power play by having the nobles swear fealty to Harthacnut (thus effectively to him); Cnut returned to Denmark at Christmas 1026, ordered his housecarls to kill Ulf, and it was done in Trinity church at Roskilde. By the end of his life, he had entirely replaced the Scandinavian inner circle who advised him with Englishmen.

In Norway, Cnut stayed into the new year and then left Jarl Erik's son Hakon in charge as his regent (he had served Sweyn Forkbeard in the same capacity), but he drowned the following winter. As his replacement Cnut sent Swein, the younger of his two sons by Ælfgifu and thus known as Sveinn Alfífuson in Norway – along with his mother as guardian. They were delayed in southern Norway while Olaf's return was rebuffed but became even more unpopular than he had been. Ælfgifu tried to impose new taxation and stricter controls on a people who valued their independence and especially resented that the new customs were Danish.

Cnut also prepared to hand over Denmark to one of his sons: upon taking power in Norway, he held a great court in Nidaros and proclaimed Harthacnut, his son by Emma, king of Denmark. As Stenton points out, by appointing different sons his heirs in different countries, he demonstrated that he did not have "the deliberate intention of founding a northern empire ... would remain united after his death." It may have been simply the custom of his people. In any event, it was clear throughout Cnut's reign that the weakness of his empire lay in the impossibility of finding loyal and competent regents to govern when he could not be present. And his sons could not hold it together.

After Cnut's death

The North Sea Empire collapsed immediately once Cnut died in 1035. In Norway, it was already collapsing: by the winter of 1033, Swein and Ælfgifu were so unpopular that they were forced to leave Trondheim. In 1034, the leader of the army that had rebuffed and killed King Olaf at Stiklestad went together with one of the king's loyal followers to bring his young son Magnus back from Gardariki to rule, and in autumn 1035, a few weeks before Cnut's death, Swein and his mother had to flee the country altogether and go to Denmark. Swein died shortly afterwards.

In Denmark, Harthacnut was already ruling as king, but he was unable to leave for three years because of the threat that Magnus of Norway would invade to exact revenge. In the meantime the English nobles, divided between him and Cnut's younger son by Ælfgifu, Harold Harefoot, decided to compromise by having Harold rule as regent; by the end of 1037, Ælfgifu had persuaded the most important nobles to swear allegiance to Harold, who was firmly ensconced as Harold I – and Harthacnut's own mother, Queen Emma, had been forced to take refuge in Flanders.

Harthacnut prepared an invasion fleet to wrest England from his half-brother, but the latter died in 1040 before it could be used. Harthacnut then became king of England, reuniting it with Denmark, but made a generally bad impression as king. The Anglo-Saxon Chronicle said of him that he never did anything royal during his entire reign. He died suddenly in June 1042 "as he stood at his drink" at the wedding feast of Tovi the Proud, one of the Danish thegns of his father's court. At first glance Harthacnut's death seems to have brought about the end of the North Sea Empire. However, Magnus of Norway, utilising the agreement he had made with Harthacnut in 1040, took control of Denmark and had plans to invade England and reunite the kingdoms and Empire. In consolidating his power in Denmark he crushed a Wendish invasion at the battle of Lyrskov Hede initiated shortly after he had destroyed the Jomsviking heartlands. This may have been an effective own goal, as it destroyed one of the key political and military components of Sveyn Forkbeard and Cnut the Great's rise to dominence. While Magnus had ejected Sveyn Estridsson from Denmark in 1046, Adam of Bremen briefly notes that Sveyn and an Earl Tovi removed Magnus from Denmark in 1047. This is confirmed by the contemporary Anglo-Saxon Chronicle, which reports that in 1047 Sveyn asked England for 50 ships to help in the battle against Magnus. "And then Sveyn expelled Magnus from Denmark and entered the country by a huge carnage, and the Danes paid him a large sum of money and recognized him as king. And the same year Magnus died.'

See also

• Kalmar Union
• List of English monarchs
• List of Danish monarchs
• List of Norwegian monarchs
• List of possessions of Norway
• Norse activity in the British Isles
• Viking expansion

Notes

1. Denmark at the time included parts of what is now Sweden.
2. As one historian put it: "When the 11th century began its fourth decade, Canute was, with the single exception of the Emperor, the most imposing ruler in Latin Christendom. ... e was lord of four important realms and the overlord of other kingdoms. Though technically Canute was counted among the kings, his position among his fellow monarchs was truly imperial. Apparently, he held in his hands the destinies of two great regions: the British Isles and the Scandinavian peninsulas. His fleet all but controlled two important seas, the North and the Baltic. He had built an Empire."

References

1. Boldt, Andreas D. (2017). Historical Mechanisms: An Experimental Approach to Applying Scientific Theories to the Study of History. Routledge. pp. 125, 196.
2. Murphy, Terence R. (1998). Magill, F. N. (ed.). Canute the Great. Vol. 2: The Middle Ages. Routledge. pp. 201–205. {{cite book}}: |work= ignored (help)
3. Larson, Laurence Marcellus (1912). Canute the Great: 995 – 1035 and the Rise of Danish Imperialism During the Viking Age. New York: Putnam. p. 257. OCLC 223097613.
4. Westergaard, Waldemar (1917). The Danish West Indies Under Company Rule (1671–1754): With a Supplementary Chapter, 1755–1917. Macmillan. Archived from the original on 19 January 2023. Retrieved 19 January 2023.
5. Belloc, Hilaire (1925). A History of England. Methuen. Archived from the original on 19 January 2023. Retrieved 19 January 2023.
6. Speed, John (1623). The Histoire of Great Britaine Vnder the Conquests of the Romans, Saxons, Danes and Normans. Their Originals, Manners, Habits, Vuarres, Coines, and Seales: with the Successions, Liues, Acts, and Issues of the English Monarchs, from Iulius Cæsar, to Our Most Gracious Soueraigne King James. Iohn Beale. Archived from the original on 19 January 2023. Retrieved 19 January 2023.
7. ^ In the probably later heading to a 1027 letter sent to his English subjects: Rex totius Angliæ et Denemarciæ et Norreganorum et partis Suanorum, "King of all England and Denmark and Norway and part of Sweden". Freeman, p. 479, note 2 Archived 14 April 2023 at the Wayback Machine.
8. Stenton, Frank (1971). Anglo-Saxon England (3rd ed.). Oxford: Clarendon. p. 386. ISBN 978-0-19-821716-9. OL 5752389M.
9. Stenton 1971, pp. 388–393.
10. Stenton 1971, p. 397.
11. Stenton 1971, p. 399, "It is with the departure of the Danish fleet and the meeting at Oxford which followed it that Cnut's effective reign begins".
12. Stenton 1971, p. 401.
13. Lauring, Palle (1960). A History of the Kingdom of Denmark. Translated by Hohnen, David. Copenhagen: Høst. p. 56. OCLC 5954675.
14. Freeman, Edward A. (1867). The History of the Norman Conquest of England: Its Causes and its Results. Vol. 1. Oxford: Clarendon. p. 404, note 1.
15. Stenton 1971, pp. 402–404.
16. Bradbury, Jim (2004). The Routledge Companion to Medieval Warfare. London: Routledge. p. 125. ISBN 0-415-22126-9. OL 3678834M.; Potter, Philip J. (2009). Gothic Kings of Britain: The Lives of 31 Medieval Rulers, 1016–1399. Jefferson, North Carolina: McFarland. p. 12. ISBN 978-0-7864-4038-2. OL 22658573M..
17. Stenton 1971, pp. 407–408; Starcke, Viggo (1962). Denmark in World History: The External History of Denmark from the Stone Age to the Middle Ages with Special Reference to the Danish Influence on the English-speaking Nations. Philadelphia: University of Pennsylvania. p. 282. OL 21975810M.
18. Stenton 1971, pp. 402–403.
19. Herbert A. Grueber and Charles Francis Keary, A Catalogue of English Coins in the British Museum: Anglo-Saxon Series, Volume 2, London: Trustees , 1893, p. lxxvii Archived 14 April 2023 at the Wayback Machine.
20. ^ Starcke 1962, p. 284.
21. Stenton 1971, p. 404; Starcke 1962, p. 289 Karen Larsen, A History of Norway, The American-Scandinavian Foundation, Princeton, NJ: Princeton University, 1948, repr. 1950, OCLC 221615697, p. 104
22. Brita Malmer, "The 1954 Rone Hoard and Some Comments on Styles and Inscriptions of Certain Scandinavian Coins from the Early Eleventh Century", in Coinage and History in the North Sea World, c. AD 500–1200: Essays in Honour of Marion Archibald, ed. Barrie Cook and Gareth Williams, Leiden: Brill, 2006, ISBN 90-04-14777-2, pp. 435–48, p. 443 Archived 14 April 2023 at the Wayback Machine.
23. Henry Noel Humphreys, The Coinage of the British Empire: An Outline of the Progress of the Coinage in Great Britain and her Dependencies, From the Earliest Period to the Present Time, London: Bogue, 1855, OCLC 475661618, p. 54 Archived 14 April 2023 at the Wayback Machine; "The Hiberno–Norse Coinage of Ireland, ~995 to ~1150" Archived 13 July 2020 at the Wayback Machine
24. Hagerman, M., 'Spåren av kungens män', 1996, p=135
25. Sawyer, P. När Sverige blev Sverige (Occasional papers on medieval topics, 1991, p=23
26. Franklin D. Scott, Sweden: The Nation's History, 2nd ed. Carbondale: Southern Illinois University, 1988, ISBN 0-8093-1489-4, pp. 25–26 Archived 14 April 2023 at the Wayback Machine, listing Cnut's claim.
27. ^ The Anglo-Saxon Chronicle (Part 4: A.D. 1015 – 1051), at the Medieval and Classical Literature Library
28. Adam av Bremen (1984), p. 104 (Book II, Chapter 61)
29. Starcke 1962, pp. 282–282.
30. ^ Stenton 1971, p. 419
31. M.K. Lawson, Cnut: England's Viking King, Stroud: Tempus, 2004, ISBN 0-7524-2964-7, p. 103: "Cnut's power would seem in some sense to have extended into Wales".
32. Benjamin T. Hudson, Viking Pirates and Christian Princes: Dynasty, Religion, and Empire in the North Atlantic, New York: Oxford University, 2005, ISBN 978-0-19-516237-0, p. 119 Archived 14 April 2023 at the Wayback Machine.
33. Lauring, p. 56: "the Danes in England very quickly became Christians".
34. Starcke, p. 283.
35. Stenton, pp. 396–397: "Swein ... first appears in history as the leader of a heathen reaction ... behaved as at least a nominal Christian in later life. ... Swein's tepid patronage of Christianity ..."
36. Stenton, p. 397: "the first viking leader to be admitted into the civilised fraternity of Christian kings".
37. Stenton, pp. 398–399.
38. Stenton, pp. 399–401.
39. Stenton, pp. 401–402.
40. Jón Stefánsson, Denmark and Sweden: with Iceland and Finland, London: Unwin, 1916, OCLC 181662877, p. 11 Archived 14 April 2023 at the Wayback Machine: "Cnut's ideal seems to have been an Anglo-Scandinavian Empire, of which England was to be the head and centre"; Lauring, p. 56: "He was fond of England and regarded it as his principle [sic] kingdom. ... Canute actually became an Englishman"; Grueber and Keary, p. 6 Archived 14 April 2023 at the Wayback Machine: "Though England had been conquered by the Dane she was really the centre of his Danish empire".
41. ^ Jón Stefánsson, p. 11.
42. Stenton, p. 402.
43. Stenton, p. 416.
44. ^ Stenton, p. 405.
45. Larsen, pp. 104–105; T. D. Kendrick, A History of the Vikings, New York: Scribner, 1930, repr. Mineola, New York: Dover, 2004, ISBN 0-486-43396-X, p. 125 Archived 14 April 2023 at the Wayback Machine: "Danish taxes were introduced, Danish laws imposed, and preference was everywhere given to Danish interests".
46. Stenton, pp. 404–405.
47. ^ Stenton, p. 406.
48. Grueber and Keary, p. 6 Archived 14 April 2023 at the Wayback Machine: "But what more than anything else ruined these hopes, as they almost always ruined the hopes of extended Scandinavian rule, were the customs of inheritance which obtained among the northern nations".
49. Lauring, p. 57: "Now that a single king had assumed power after the pattern of Western Europe, the moment that king went away and omitted to leave strong men in charge behind him, or left a weak one, became fatally weakened".
50. Larsen, p. 110.
51. Stenton, p. 420.
52. Joseph Stevenson, ed. and tr., The Church Historians of England, volume 2 part 1, London: Heeleys, 1853, p. 96, entry for 1040 Archived 14 April 2023 at the Wayback Machine; Stenton, p. 422; Lauring, p. 57: "Canute's sons, despite the fact that they were both completely incompetent, were both proclaimed Kings of England".
53. Lauring, p. 57.
54. "Den Store Dansk (Great Danish Encyclopedia)". Archived from the original on 14 April 2023. Retrieved 9 September 2022.

v t e Vikings
Culture	Blót Brisingamen Danegeld Dís Eddas Einherjar Futhark Elder Futhark Younger Futhark Germanic deities Gothi Hnefatafl Holmgang Leysingi Mjölnir Norsemen Norse funeral (ship burial) Norse mythology Norse rituals Old Norse Old Norse religion Raven banner Sagas Skald Seeress Skíðblaðnir Thrall Tyrfing Valhalla Valkyrie Viking Age Viking art Viking runestones Viking Age trade Wergeld Yggdrasil
Ships and navigation	Knarr Longship Viking ships Viking ship replica Visby lenses
Homelands and colonies	North Sea Empire Iceland Greenland Orkney Islands Shetland Faroe Islands North America L'Anse aux Meadows Vinland Jomsborg Kievan Rus'
Expansion	Viking expansion British Isles Danelaw Anglia Mercia York Isle of Man Scotland Wessex France Brittany Normandy Rhineland Pomerania Estonia Iberia Dublin Italy
Battles	Tactics and warfare Battle of Aclea First Battle of Alton Battle of Anglesey Sound Battle of Ashdown Battle of Assandun Battle of Basing Battle of Barry Battle of Bauds Battle of Benfleet Battle of Brávellir Battle of Brentford (1016) Battle of Brissarthe Battle of Brunanburh Battle of Buttington Battle of Cathair Cuan Battle of Chippenham Battle of Clontarf Battle of Confey Battle of Corbridge Battle of Cynwit Battle of Derby Battle of Dollar Battle of Edington Battle of Englefield Battle of Epiphany Battle of Fitjar Battle of Florvåg Battle of Fulford Battle of Fýrisvellir Battle of Glenmama Battle of Hafrsfjord Battle of Helgeå Battle of Hingston Down Battle of the Holme Battle of Hjörungavágr Battle of Islandbridge Battle of Largs Battle of Leuven (891) Battle of London Bridge Battle of Lüneburg Heath Battle of Lyrskov Heath Battle of Mag Femen Battle of Maldon Battle of Meretun Battle of Nesjar Battle of Niså Battle of Norditi Battle of Pinhoe Battle of Rastarkalv Battle of Reading (871) Battle of Renfrew Battle of Remich Battle of Ringmere Battle of Rochester Battle of Sasireti Battle of Saucourt-en-Vimeu Battle of Skyhill Battle of Stainmore Battle of Stamford (894) Battle of Stamford (918) Battle of Stamford Bridge Battle of Stiklestad Battle of Strangford Lough Battle of Svolder Battle of Sulcoit Battle of Tara (Ireland) Battle of Tarbat Ness Battle of Tempsford Battle of Tettenhall Battle of Thetford Battle of Thimeon Battle of Trans-la-Forêt Battle of York Burning of Luimneach Viking raid on Galicia and Asturias Raids in the Rhineland Raid on Seville Sack of Santiago de Compostela Siege of Asselt Siege of Chartres (911) Siege of Constantinople (860) Sack of Paris Siege of Paris Cnut the Great's invasion of England
Arms, armour and fortifications	Berserker Danevirke Great Heathen Army Hersir Hird Viking Age arms and armour Halberd Atgeir Skeggöx Dane axe Gjermundbu helmet Yarm helmet Sword Ulfberht Ingelrii Ring Fortress Raid Warfare and Tactics Shield-maiden Svinfylking Formation Varangian Guard
Historical figures	Airdeconut Amlaíb Cenncairech Amlaíb Cuarán Amlaíb Conung Aud the Deep-Minded (Ketilsdóttir) Auisle Bagsecg Berle-Kari Birka female Viking warrior Bjørn (floruit 856–58) Bjorn Asbrandsson Bjarni Herjólfsson Björn Ironside Bjorn the Easterner Cnut Egill Skallagrímsson Eohric of East Anglia Eric Bloodaxe Erik the Red Eric I of Denmark Eiríkr Hákonarson Freydís Eiríksdóttir Freygeirr Garðar Svavarsson Godfrid Haraldsson Godfrid, Duke of Frisia Grímur Kamban Gudrid Thorbjarnardóttir Gunnar Hámundarson Guthred Guthrum Hakon Rognvaldsson Haakon the Good Haakon Sigurdsson Halfdan Long-Leg Halfdan Ragnarsson Hagrold Harald Bluetooth Harald Fairhair Harald Hardrada Harald Wartooth Hastein Hemming Halfdansson Hervor Hrafna-Flóki Vilgerðarson Hvitserk Ingvar the Far-Travelled Ingólfr Arnarson Ivar the Boneless Jomsvikings Ketilsdóttir Ketill Flatnose Ketil Trout (Iceland) Lagertha Leif Erikson Magnus Barefoot Naddodd Náttfari Olaf Tryggvason Olav Haraldsson Olaf the White Olof Skötkonung Orm Storolfsson Ohthere of Hålogaland Ottir Palnatoke Ragnar Lodbrok Ragnar Ragnarsson Ragnhild Eriksdotter Ragnall ua Imair Raud the Strong Reginheri Rognvald Eysteinsson Rollo Rorik Rusla Snæfrithr Svásadottir Sigvaldi Strut-Haraldsson Sigurd Ring Sigurd Snake-in-the-Eye Sigurd the Stout Sitric Caech Skalla-Grímr Snorri Sturluson Steinunn Refsdóttir Styrbjörn the Strong Sweyn Asleifsson Sweyn Forkbeard Þorbjörg Lítilvölva Thorfinn the Mighty Thorfinn Torf-Einarsson Thorkell the Tall Thorir Hund Thorolf Kveldulfsson Thorstein the Red Tryggvi the Pretender Turgesius Valtoke Gormsson Vagn Åkesson Veborg Ubba Uí Ímair Unn the Deep-Minded
Runestones	Ballstorp Runestone Baltic area runestones Danish Runic Inscription 66 Danish Runic Inscription 154 Danish Runic Inscription 380 Egtved Runestone England runestones Greece runestones Gunnar's bridge runestones Hagby Runestones Hakon Jarl runestones Hällestad Runestones Ingvar runestones Italy runestones Karlevi Runestone Lingsberg Runestones Norra Härene Runestone Orkesta Runestones Runestones at Aspa Runestones of Högby Sædinge Runestone Sigtrygg Runestones Simris Runestones Sjörup Runestone Småland Runic Inscription 48 Södermanland Runic Inscription 174 Södermanland Runic Inscription 333 Sparlösa Runestone Stangeland stone Stone of Eric Runestone U 582 Uppland Runic Inscription 158 Varangian runestones Västergötland Runic Inscription 40 Västra Nöbbelöv Runestone Viking runestones
Related	Viking revival Viking Ship Museum (Oslo) Viking Ship Museum (Roskilde)

• Cnut
• History of Scandinavia
• Anglo-Norse England
• 1016 establishments in Europe
• 1035 disestablishments in Europe
• States and territories established in 1013
• States and territories disestablished in the 1040s
• Former monarchies of Europe