Note 354 — Chapter LXXII · THE BURNING OF FRAKORK.
Gilbert Goudie translation
Borgarfiord seems here to be a misreading for Breidafiord (the Moray Firth), unless we suppose that there was another Borgarfiord besides the one in Shetland. Jonæus has nordr instead of sudr, thus making Swein sail north to Borgarfiord, which in this case would be in Shetland. But it is hardly probable that he would have taken Shetland in his route from Orkney to the coast of Moray.