Ragnvald Kale Kollsson was a Norwegian saint. He was born c. 1100 and died 20 August 1158. In 1129 he was appointed jarl of half of Orkney. He initiated the construction of the St. Magnus' Cathedral in Kirkwall in 1137. He was murdered in Caithness in 1158 and buried inside the St. Magnus cathedral. Miracles were reported after his death and he was supposedly canonized by Pope Celestine III.

References

• Anon., Orkneyinga Saga: The History of the Earls of Orkney, tr. Hermann Pálsson and Paul Edwards. Penguin, London, 1978. ISBN 0-14-044383-5
• Crawford, Barbara E., "An unrecognised statue of Earl Rognvald" in Crawford, Barbara E. (ed), Northern Isles Connections: Essays from Orkney and Shetland presented to Per Sveaas Andersen. Kirkwall: Orkney Press, 1995. ISBN 0-907618-35-9