By Fiona Grahame In the 11th century two brothers ruled Orkney, Paul and Erlend,twin sons of Thorfinn the Mighty and Ingibiorg Finnsdottir.   They did so successfully for 30 years.  Paul married a daughter of Earl Hakon Ivarsson, part of the Norwegian aristocracy, and they had a son Haakon. Erlend married Thora, daughter of Sumarlidi … Continue reading Haakon and Magnus