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Magnus IV of Sweden

Magnus IV & VII
Magnus on the title page of his Swedish national lawcode, c. 1350.
King of Sweden
Reign 8 July 1319 – February 1364
Coronation 21 July 1336[1] (aged 20) Stockholm
Predecessor Birger
Successor Albert
King of Norway
Reign August 1319 – 15 August 1343
Predecessor Haakon V
Successor Haakon VI
Spouse Blanche of Namur
Issue Eric XII of Sweden
Haakon VI of Norway
House Bjelbo
Father Eric, Duke of Södermanland
Mother Ingeborg of Norway
Born April or May 1316
Died 1 December 1374(1374-12-01) (aged 58)
Bømlafjorden, Norway (shipwreck)
Burial Varnhem Abbey
Religion Roman Catholic

Magnus IV (April or May 1316  – 1 December 1374; Swedish Magnus Eriksson) was King of Sweden (including Finland) from 1319 to 1364, King of Norway as Magnus VII (including Iceland and Greenland) from 1319 to 1343, and ruler of Scania from 1332 to 1360. By adversaries he has been called Magnus Smek (English: Magnus the Caresser).

Referring to Magnus Eriksson as Magnus II is inaccurate. The Swedish Royal Court officially lists three Swedish kings before him by the name.[2][3]


  • Biography 1
  • The Peace of Nöteborg 2
  • Crusade against Novgorod 3
  • Greenland 4
  • Later years 5
  • Evaluation of his reign 6
  • Ancestry 7
  • References 8
  • Literature 9
  • See also 10


Magnus was born in Knut Jonsson and Erling Vidkunsson.

Magnus was declared to have come of age at 15 in 1331. This caused resistance in Norway, where a statute from 1302 made clear that kings came of age at the age of 20, and a rising by Erling Vidkunsson and other Norwegian nobles ensued. In 1333, the rebels submitted to king Magnus.

In 1332 the king of Denmark, Christopher II, died as a "king without a country" after he and his older brother and predecessor had pawned Denmark piece by piece. King Magnus took advantage of his neighbour's distress, redeeming the pawn for the eastern Danish provinces for a huge amount of silver, and thus became ruler also of Skåneland.

On 21 July 1336 Magnus was crowned king of both Norway and Sweden in Stockholm. This caused further resentment in Norway, where the nobles and magnates wished a separate Norwegian coronation. A second rising by members of the high nobility of Norway ensued in 1338.

Historic map of when Sweden was divided between Magnus Eriksson and Erik Magnusson during 1357

In 1335 he married Blanche of Namur, daughter of John I, Marquis of Namur, and Marie of Artois, a descendant of Louis VIII of France. The wedding took place in October or early November 1335, possibly at Bohus castle. As a wedding gift Blanche received the province of Tunsberg in Norway and Lödöse in Sweden as fiefs. They had two sons, Eric and Haakon, plus at least three daughters who died in infancy and were buried at Ås Abbey.

Opposition to Magnus' rule in Norway led to a settlement between the king and the Norwegian nobility at Varberg on 15 August 1343. In violation of the Norwegian laws on royal inheritance, Magnus' younger son Haakon would become king of Norway, with Magnus as regent during his minority. Later the same year, it was declared that Magnus' older son, Eric would become king of Sweden on Magnus' death. Thus, the union between Norway and Sweden would be severed. This occurred when Haakon came of age in 1355.

Because of the raise in taxation to pay for the acquisition of the Scanian province, some Swedish nobles supported by the Church attempted to oust Magnus, setting up his elder son Erik Magnusson as king (Eric XII of Sweden), but Eric died supposedly of the plague in 1359, with his wife Beatrice of Bavaria and their two sons.

The Peace of Nöteborg


On 12 August 1323, Magnus concluded the first Posadnik) Fedor were inconclusive and the Swedes attacked Karelians around Lake Ladoga and Lake Onega before a peace was concluded in 1339 along the old terms of the 1323 treaty. In this treaty, the Swedes claimed that Sten and others acted on their own without the consent of the king.[6]

Crusade against Novgorod

Relations were quiet between Sweden and Novgorod until 1348, when Magnus led a crusade against Novgorod, marching up the Neva, forcibly converting the tribes along that river, and briefly capturing the fortress of Orekhov for a second time.[7] The Novgorodians retook the fortress in 1349 after a seven-month siege, and Magnus fell back, in large part due to the ravages of the plague farther West. While he spent much of 1351 trying to drum up support for further crusading action among the German cities in the Baltic States, he never returned to attack Novgorod.[8]


In 1355 Magnus sent a ship (or ships) to Greenland to inspect its Western and Eastern Settlements. Sailors found settlements entirely Norse and Christian. The Greenland carrier (Groenlands Knorr) made the Greenland run at intervals till 1369, when she sank and was apparently not replaced.[9]

Later years

King Valdemar IV of Denmark conquered Scania in 1360. He went on to conquer Gotland in 1361. On 27 July 1361, outside the city of Visby, the main city of Gotland, the final battle took place. It ended in a complete victory for Valdemar. Magnus had warned the inhabitants of Visby in a letter and started to gather troops to reconquer Scania. Valdemar went home to Denmark again in August and took a lot of plunder with him. Either in late 1361 or early 1362 the inhabitants of Visby raised themselves against the few Danish that Valdemar left behind and killed them.

In 1363, members of the Swedish Council of Aristocracy, led by Bo Jonsson Grip, arrived in the court of Mecklenburg. They had been banished from the country after a revolt against king Magnus Eriksson. At the nobles' request, Albert of Mecklenburg launched an invasion of Sweden supported by several German dukes and counts. Several Hanseatic cities and dukes in Northern Germany expressed support of the new king. Stockholm and Kalmar, with large Hanseatic populations, and also welcomed the intervention. Albert was proclaimed King of Sweden and crowned on 18 February 1364. Magnus found refuge with his younger son in Norway, where he drowned in a shipwreck in Bømlafjorden in 1374. He had retained his sovereignty over Iceland until his death.

Evaluation of his reign

Head from Trondheim thought by Professor Jan Svanberg to be King Magnus.

In spite of his many formal expansions his rule was considered a period of decrease both to the Swedish royal power and to Sweden as a whole. Foreign nations like Denmark (after its recovery in 1340) and Mecklenburg intervened and Magnus himself does not seem to have been able to resist the internal opposition. He was regarded a weak king and criticised for giving favourites too much power.

Magnus' young favourite courtier was Bengt Algotsson, whom he elevated to Duke of Finland and Halland, as well as Viceroy of the province of Scania. Because homosexuality was a mortal sin and vehemently scorned at that time, rumours about the king's alleged love relationship with Algotsson, and other erotic escapades, were spread by his enemies, particularly by some noblemen who referred to mystical visions of St. Bridget (Birgitta). The allegations earned Magnus the epithet of Magnus the Caresser and caused him a lot of harm, but there is no factual basis for them in historical sources.[10]

In a bit of propagandist retaliations against Magnus, the Russians drew up an allegedly autobiographic account known as the Testament of Magnus (Rukopisanie Magnusha) which has been inserted into the Russian Sofia First Chronicle, composed in Novgorod, which claimed that Magnus in fact, did not drown at sea, but saw the errors of his ways and converted to Orthodoxy, becoming a monk in a Novgorodian monastery in Karelia. The account is apocryphal.[11]



  1. ^ Kings and Rulers of Sweden ISBN 91-87064-35-9 p. p 22
  2. ^ a b (Norsk biografisk leksikon)Magnus 7 Eriksson
  3. ^ (Berättelser ur svenska historien )Albrekt af Meklenburg och Magnus Eriksson, 1364–1371
  4. ^
  5. ^ Michael C. Paul, "Archbishop Vasilii Kalika, the Fortress of Orekhov, and the Defense of Orthodoxy," in Alan V. Murray, Clash of Cultures on the Medieval Baltic Frontier (Farnham, UK: Ashgate, 2009):255
  6. ^ Paul, "Archbishop Vasilii Kalika," 264–5.
  7. ^ Paul, "Archbishop Vasilii Kalika", 266–267.
  8. ^ Paul, "Archbishop Vasilii Kalika," 268.
  9. ^ Gwyn Jones, "The Vikings", Folio Society, London 1997, p.292.
  10. ^ Libellus de Magno Erici Rege,in: Scriptores Rerum Svecicarum III,1, p.15–19
  11. ^ Sofiiskaia Pervaia Letopis' in Polnoe Sobranie Russkikh Letopisei, vol. 5 (St. Petersburg: Eduard Prats, 1851). It is available online at


  • Mikael Nordberg, I kung Magnus tid (In the Times of King Magnus) ISBN 91-1-952122-7
  • Bernd-Ulrich Hergemöller, Magnus versus Birgitta : der Kampf der heiligen Birgitta von Schweden gegen König Magnus Eriksson, Hamburg 2003 (German)

See also

Magnus Eriksson
Born: Spring of 1316 Died: 1 December 1374
Regnal titles
Regency held
by Mats Kettilmundsson
Title last held by
King of Sweden
with Eric XII (1356–1359)
Haakon VI (1362–1364)
Succeeded by
Preceded by
Haakon V
King of Norway
Succeeded by
Haakon VI
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