The third year King Ethelred died, and his sons Edmund and Edward took
the government (A.D. 1012). Then Olaf sailed southwards out to sea, and
had a battle at Hringsfjord, and took a castle situated at Holar, where
vikings resorted, and burnt the castle. So says Sigvat the skald:--
"Of the tenth battle now I tell,
Where it was fought, and what befell.
Up on the hill in Hringsfjord fair
A robber nest hung in the air:
The people followed our brave chief,
And razed the tower of the viking thief.
Such rock and tower, such roosting-place,
Was ne'er since held by the roving race."