Hallbjorn Halftroll or Hallbjorn Ulfsson was an early ninth century Norwegian hersir. He was the father of Ketil Trout of Hrafnista. He is mentioned in the ''

Ketils saga hœngs :''The hero of this saga is often confused with his grandson by the same name.'' ''Ketils saga hœngs'' or ''The Saga of Ketil Trout'' is an Icelandic legendary saga on the Norwegian chieftain Ketil Hallbjarnarson Haeng ( non, Ketill hœngr Hal ...

'' as well as '' Egils saga'' and the ''

Landnámabók (, "Book of Settlements"), often shortened to , is a medieval Icelandic written work which describes in considerable detail the settlement () of Iceland by the Norse in the 9th and 10th centuries CE. is divided into five parts and over ...

''. He was Norwegian- Sami.Pálsson, Hermann. "The Sami People in Old Norse Literature." Nordlit 3.1 (2012): 29-53. "The following nouns were used about people of mixed parentage:".."halftroll 'a half troll'. This is used as the nickname of Hallbjorn of Ramsta in Namdalen, father of Ketill hoengr, and ancestor of some of the settlers of Iceland, including Skalla-Grimr."

References

9th-century Norwegian people Norwegian Sámi people {{Norway-bio-stub