Kingdom of Norway (872–1397) (English Wikipedia)

Demir, Sores Welat (1 January 2019). Norge & Noreg – Norges Historie / (History of Norway – Book by SWD). SWD Group. ISBN 9788284220246. Archived from the original on 30 July 2022. Retrieved 21 June 2022 – via Google Books.
Imsen, Steinar (11 June 2010). The Norwegian Domination and the Norse World, C.1100-c.1400. Tapir Academic Press. ISBN 9788251925631. Archived from the original on 18 April 2023. Retrieved 21 June 2022 – via Google Books.
Oram, Richard (21 February 2011). Domination and Lordship. Edinburgh University Press. ISBN 9780748687688. Archived from the original on 18 April 2023. Retrieved 21 June 2022 – via Google Books.

doi.org

Brothen, James A. (1996). "Population Decline and Plague in late medieval Norway". Annales de démographie historique (in French). 1996 (1): 137–149. doi:10.3406/adh.1996.1915. PMID 11619268. Archived from the original on 18 January 2018. Retrieved 4 November 2017.

nih.gov

pubmed.ncbi.nlm.nih.gov

Brothen, James A. (1996). "Population Decline and Plague in late medieval Norway". Annales de démographie historique (in French). 1996 (1): 137–149. doi:10.3406/adh.1996.1915. PMID 11619268. Archived from the original on 18 January 2018. Retrieved 4 November 2017.

norway.org.uk

"A Short History of Norway". Royal Norwegian Embassy in London. Archived from the original on 15 December 2016. Retrieved 1 February 2020.

persee.fr

Brothen, James A. (1996). "Population Decline and Plague in late medieval Norway". Annales de démographie historique (in French). 1996 (1): 137–149. doi:10.3406/adh.1996.1915. PMID 11619268. Archived from the original on 18 January 2018. Retrieved 4 November 2017.

ramscraigs.com

"When Caithness Became Scottish « Ramscraigs – A Caithness Story". ramscraigs.com. Archived from the original on 25 September 2017. Retrieved 25 September 2017.

snl.no

Bandlien, Bjørn, ed. (31 January 2020). Leiv Eiriksson (in Norwegian). Archived from the original on 5 August 2017. Retrieved 1 February 2020. {{cite encyclopedia}}: |work= ignored (help)

nbl.snl.no

https://nbl.snl.no/Rollo_Gange-Rolv_Ragnvaldsson Archived 30 June 2018 at the Wayback Machine Written for the public Norwegian Encyclopedia SNL, by professor Claus Krag 02.13.09

statkart.no

Vassdal, Trond O. (3 August 2012). "Historisk sammendrag vedrørende riksgrensen Norge – Russland" (PDF) (in Norwegian). Norwegian Mapping and Cadastre Authority. Archived (PDF) from the original on 24 August 2012. Retrieved 20 August 2012.

web.archive.org

Demir, Sores Welat (1 January 2019). Norge & Noreg – Norges Historie / (History of Norway – Book by SWD). SWD Group. ISBN 9788284220246. Archived from the original on 30 July 2022. Retrieved 21 June 2022 – via Google Books.
Bandlien, Bjørn, ed. (31 January 2020). Leiv Eiriksson (in Norwegian). Archived from the original on 5 August 2017. Retrieved 1 February 2020. {{cite encyclopedia}}: |work= ignored (help)
Imsen, Steinar (11 June 2010). The Norwegian Domination and the Norse World, C.1100-c.1400. Tapir Academic Press. ISBN 9788251925631. Archived from the original on 18 April 2023. Retrieved 21 June 2022 – via Google Books.
"When Caithness Became Scottish « Ramscraigs – A Caithness Story". ramscraigs.com. Archived from the original on 25 September 2017. Retrieved 25 September 2017.
Oram, Richard (21 February 2011). Domination and Lordship. Edinburgh University Press. ISBN 9780748687688. Archived from the original on 18 April 2023. Retrieved 21 June 2022 – via Google Books.
"The Northern Earldoms - Orkney and Caithness from AD 870 to 1470". Archived from the original on 25 September 2017. Retrieved 25 September 2017.
https://nbl.snl.no/Rollo_Gange-Rolv_Ragnvaldsson Archived 30 June 2018 at the Wayback Machine Written for the public Norwegian Encyclopedia SNL, by professor Claus Krag 02.13.09
Vassdal, Trond O. (3 August 2012). "Historisk sammendrag vedrørende riksgrensen Norge – Russland" (PDF) (in Norwegian). Norwegian Mapping and Cadastre Authority. Archived (PDF) from the original on 24 August 2012. Retrieved 20 August 2012.
Brothen, James A. (1996). "Population Decline and Plague in late medieval Norway". Annales de démographie historique (in French). 1996 (1): 137–149. doi:10.3406/adh.1996.1915. PMID 11619268. Archived from the original on 18 January 2018. Retrieved 4 November 2017.