Redigerer Sigurd Øysteinsson (avsnitt)

== Litteratur ==
*Ashley, Mike (1998), ''The Mammoth Book of British Kings and Queens'', London: Robinson. {{ISBN|1-84119-096-9}}
*{{cite book|last1=Calder|first1=James T.|title=Sketch of the Civil and Traditional History of Caithness from the Tenth Century|date=1887|location=Wick|edition=2nd|url=https://books.google.com/books?id=D0CTAAAAIAAJ&pg=PA51}}
*Crawford, Barbara E. (2004). [http://www.oxforddnb.com/view/article/49269 "Einarr, earl of Orkney (''fl.'' early 890s–930s)"], ''Oxford Dictionary of National Biography'', Oxford University Press, retrieved 20 July 2009 (Subscription required)
*Gray, James (1922), [http://www.gutenberg.org/files/15856/15856-8.txt ''Sutherland and Caithness in Saga-Time''], Edinburgh: Oliver & Boyd.
*Pálsson, Hermann; Edwards, Paul Geoffrey (1981), ''Orkneyinga Saga: The History of the Earls of Orkney'', Penguin Classics. {{ISBN|0-14-044383-5}}
* [http://www.nb.no/nbsok/nb/8d140ad7d3200d47d473de9ae6f8c8bc?index=2#313 Sigurd Eysteinsson] Norsk biografisk leksikon, bind 13, s. 306
* [http://www.orkneyjar.com/history/vikingorkney/sigurd.htm Earl Sigurd the Mighty] orkneyjar.com
* The Northern Earldoms, av Barbara E. Crawford (2013) ISBN 978 1 9046079


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[[Kategori:Nordmenn fra vikingtiden]]
[[Kategori:Dødsfall i 892]]
[[Kategori:Jarler av Orknøyene]]