Heimskringla; Or, The Chronicle of the Kings of Norway

3. MAGNUS MADE KING.

Magnus Olafson advanced to the town (Nidaros), where he was joyfully received. He then summoned the people to the Eyra-thing (1); and when the bondes met at the Thing, Magnus was taken to be king over the whole land, as far as his father Olaf had possessed it. Then the king selected a court, and named lendermen, and placed bailiffs and officers in all domains and offices. Immediately after harvest King Magnus ordered a levy through all Throndhjem land, and he collected men readily; and thereafter he proceeded southwards along the coast.

   ENDNOTES: (1) Eyra Thing, held on the ayr of the river Nid, that is, on
     the spit of sand, still called an ayr in the north of
     Scotland, dividing a lake, pond, or river-mouth from the
     sea.  At the Thing held here the kings of Norway were chosen
     and proclaimed.  It was held to be the proper Thing for
     settling disputes between kings in Norway.—L.