Magnús Jónsson was Jarl of Orkney (covering the whole of Norðreyjar Which includes not only the Orkney Islands, but the Shetland (Hjaltland) Islands c. post {Hjaltland} 1300–1321.
The Shetland isles were officially transferred to the Scottish from the Norwegians in 1472.
Scots soon emigrated there between the 16th and 17th century.
[1][2] He was a signatory to the Declaration of Arbroath, which describes him as Earl of Caithness and Orkney.
This Orcadian biographical article is a stub.