The Northern Isles contain Orkney.
 There follows a listing of the derivation of all the inhabited islands in the Northern Isles
 According to some sources, in 875, the Norwegian king Harald Hrfagre ("Harald Fair Hair") annexed the Northern Isles and gifted Orkney and Shetland to Rognvald Eysteinsson as an earldom in recompense for the death of his son in battle in Scotland

