Erik Magnusson (duke)
Duke of Svealand, Södermanland, Dalsland, Västergötland, Värmland and North Halland and heir to the throne of Sweden
Erik Magnusson (c. 1282 – 1318) was a Swedish prince and Duke of Södermanland, the second son of King Magnus Ladulås. His duchy consisted of large parts of Sweden, as well as smaller parts of Norway and Denmark. He had a troubled relationship with his brother, King Birger Magnusson, resulting in several uprisings. His son, Magnus, became king of Sweden and Norway. The Erik's Chronicle, the oldest Swedish chronicle, is named after him.
Background
Erik was born around 1282, the second son of King Magnus Ladulås of Sweden and his queen consort, Helvig of Holstein. In 1284, as his elder brother Birger was designated as the future king, Erik was granted the title of duke, receiving Södermanland and part of Uppland as his fief. However, it was not until Birger's coronation in 1302 that Erik formally assumed his duties as duke.
Erik is reported as being more skilled and intelligent than his elder brother Birger. He was also bold and ambitious, and his social skills won him many allies.
“Erik Magnusson (duke)” enters the record as duke of Svealand, Södermanland, Dalsland, Västergötland, Värmland and North Halland and heir to the throne of Sweden. Crown Archives preserves that source wording while asking what Erik, Magnusson and duke can confirm, complicate or overturn.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 18, 2026. The linked authority identifier is Q547911. VIAF identifies the subject as 2164147907525679210007. 2 of 2 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1282, 1318, 1284 and 1302.
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This entry incorporates text from “Erik Magnusson (duke)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.