page_title: Kingdom of Norway (872–1397)
section_title: Monarchs of the hereditary kingdom
hierarchical_section_title: Kingdom of Norway (872–1397) / Monarchs of the hereditary kingdom
context_page_description: The term Norwegian Realm and Old Kingdom of Norway refer to the Kingdom of Norway's peak of power at the 13th century after a long period of civil war before 1240. The kingdom was a loosely unified nation including the territory of modern-day Norway, modern-day Swedish territory of Jämtland, Herjedalen, Ranrike and Idre and Särna, as well as Norway's overseas possessions which had been settled by Norwegian seafarers for centuries before being annexed or incorporated into the kingdom as 'tax territories'. To the North, Norway also bordered extensive tax territories on the mainland. Norway, whose expansionalism starts from the very foundation of the Kingdom in 872, reached the peak of its power in the years between 1240 and 1319.
  At the peak of Norwegian expansion before the civil war, Sigurd I led the Norwegian Crusade. The crusaders won battles in Lisbon and the Balearic Islands. In the Siege of Sidon they fought alongside Baldwin I and Ordelafo Faliero, and the siege resulted in an expansion of the Kingdom of Jerusalem. Leif Erikson, an Icelander of Norwegian origin and official hirdman of King Olaf I of Norway, explored America 500 years before Columbus.
context_section_description: Yngling / Fairhair dynasty
  Harald I Halfdansson
  Eric I Haraldsson
  Haakon I Haraldsson
  Harald II Ericsson
  Lade dynasty
  Haakon Sigurdsson
  Trygvason dynasty
  Olaf Tryggvason
  Lade dynasty (restored)
  Eric Haakonsson and Sweyn Haakonsson
  Saint Olaf dynasty
  Olaf II Haraldsson
  Lade dynasty (restored, second time)
  Haakon Ericsson
  Saint Olaf dynasty (restored)
  Magnus I Olafsson
  Hardrada dynasty
  Harald Sigurdsson
  Magnus II Haraldsson
  Olaf III Haraldsson
  Haakon Magnusson
  Magnus III Olafsson
  Olaf IV Magnusson
  Eystein I Magnusson
  Sigurd I Magnusson
  Magnus IV Sigurdsson
  Gille dynasty
  Harald IV Magnusson
  Sigurd II Haraldsson
  Inge I Haraldsson
  Eystein II Haraldsson
  Magnus Haraldsson
  Haakon II Sigurdsson
  Hardrada dynasty (female line)
   Magnus V Erlingsson
  Sverre dynasty
   Sverre I Sigurdsson
  Haakon III Sverresson
  Guttorm Sigurdsson
  Gille dynasty (female line)
  Inge II Bårdsson
  Sverre dynasty (restored)
  Haakon IV Haakonsson
  Haakon Haakonsson
  Magnus VI Haakonsson
  Eric II Magnusson
   Haakon V Magnusson
caption: Haraldr Halfdansson, first monarch of the Fairhair dynasty
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