The Saga of Olaf Haraldson tells how Olav Haraldsson (Olaf II of Norway, also Saint Olaf), the King of Norway, plundered in Finland and was almost killed in the battle.
According to Snorri Sturluson's Heimskringla, Magnus Barefoot, King of Norway, had his longship dragged across this isthmus as part of a campaign to increase his possessions in the Hebrides.
According to Heimskringla, Maria, together with her sister Ingegerd and mother, went with Harald on his expedition to Britain in 1066.
It is unclear whether Rögnvald was Erik's son by his wife Gunnhild or by another woman; the Heimskringla does not mention him among Erik's children with Gunnhild.
Holtsmark published several translations from Old Norse into Norwegian: Heimskringla (with Didrik Arup Seip, two volumes, 1934); the Prose Edda (1950); Helgisaga Óláfs konungs Haraldssonar (1956); Sverris saga (1961), Hákonar saga Hákonarsonar (1964); and Orkneyinga saga (1970).
King Olaf's betrothal to Ingegerd is described in both Fagrskinna and in Heimskringla.
Hollander, Lee M. (ed. & tr.) (1964) Heimskringla: History of the Kings of Norway. Austin: University of Texas Press.
In the 13th century collection of sagas, Heimskringla, Snorri Sturluson tells that Sweyn Forkbeard was captured in an attack on the Jomsvikings, and turned over to Burislav, king of Wendland.
Heimskringla, Fagrskinna, Ágrip and Historia Norwegiæ all relate that Halfdan drowned when he fell through the ice at the inlet Røykenvik in the lake Randsfjorden on his return home from Hadeland.
The text is important, among other things, because it constitutes (in Latin translation) an independent version of Þjóðólfr of Hvinir's Ynglingatal besides the text in Ynglinga saga in the Heimskringla.
Scholar Claus Krag sees echoes of Judas kissing Jesus in the scenes in Heimskringla between Kálfr and Olaf.
An example of how sagas have been used as indirect sources for religious practice is Snorri Sturluson's Heimskringla.
Composed around 1300 it takes Óláfs saga Tryggvasonar in Snorri Sturluson's Heimskringla as its base but expands the narrative greatly with content from the previous biographies of the king by Oddr Snorrason and Gunnlaugr Leifsson as well as less directly related material.
His story appears in Heimskringla by Snorri Sturluson, the saga Morkinskinna, and in Óláfs saga Tryggvasonar composed by Oddr Snorrason.