The Heimskringla on Jon Halkelson

Heimskringla > part in the government with his brother Hardaknut. In the same autumn > 4. Fall Of Gyrd And Havard.

• attestation: Jon son of Halkel Huk gathered armed bondes, captured Kolbein Ode, and killed every man in his ship.

  "Jon the son of Halkel Huk collected the bondes in arms, and proceeded against them; took Kolbein Ode prisoner, killed every woman's son of them in his ship."

Heimskringla > part in the government with his brother Hardaknut. In the same autumn > 1. Of Magnus Erlingson'S Beginning.

• attestation: The meeting's difficulty was visible in that each candidate deflected the offer: Jon refused the generalship, Nikolas the kingship.

  "Then it was inquired if Nikolas Skialdvarson, a sister's son of King Magnus Barefoot, would place himself at the head of the army; but he answered thus"

Heimskringla > part in the government with his brother Hardaknut. In the same autumn > 18. Markus And King Sigurd Killed.

• attestation: Jon Halkelson was among the few given quarter by Nikolas's men.

  "Nikolas and his men took their ships, gave Jon Halkelson and a few others quarter, but killed the most of them they could get hold of."