 Snaekoll Gunnisson, a great-grandson of Rognvald Kali, demanded that Jon Haraldsson should share the Earldom with him.The supporters of Jon and Snaekoll fought a war until it was agreed that King Haakon IV of Norway should settle the matter.All concerned set off to Norway, but a ship carrying Jon Haraldsson, his supporters and his kin, was lost at sea on the return voyage during 1231.. An alternative version of Earl John's demise is that he was resident in Thurso, and had his hall burnt around him.