In the king-list and saga tradition of the Yngling lineage, Eystein is presented as the son of Halfdan Hvitbeinn. He inherited the throne of Romerike and, through marriage to Hild—daughter of Erik Ragnarsson, king of Vestfold—obtained Vestfold because Erik had no son. He is placed within the semi-legendary genealogical sequencing of early Norwegian rulership in sources such as Ari Þorgilsson's Íslendingabók and Snorri Sturluson's Heimskringla (Ynglinga saga).
The available sources do not provide a physical description of Eystein beyond his status as a king. The saga narrative records that after his death his body was salvaged and buried in a mound at Borre, which situates him within the saga motif of elite mound-burial but gives no details of his personal dress, stature, or other corporeal marks.
The cited texts attribute no supernatural powers to Eystein himself. He is depicted as a dynastic ruler who inherited and acquired territory and who engaged in Viking raiding activity—his men are said to have been 'looting and pillaging' at Varna prior to his death. His narrative significance in the sagas is political and genealogical rather than magical.
Weaknesses
- otherVulnerability to practiced sorcery — narrative death caused by King Skjöld's magical act (waving his cloak and blowing into it) that swung a sail-bearing spar and knocked Eystein overboard, drowning him.
Wards
- otherNone recorded in sources

Brahmarakshas
The most learned and terrible of spirits — the ghost of a Brahmin who misused his scriptural knowledge in life and was condemned after death to be both demon and scholar, haunting places of learning.

Djinn
The class of supernatural beings created from smokeless fire in Islamic cosmology — a parallel civilization to humanity, capable of belief or unbelief, with their own prophets, society, and judgment before God.

Jann
The weakest class of djinn in Islamic tradition, associated with desert winds and taking the form of snakes or whirlwinds, dwelling in empty wilderness and posing little threat to those who know the proper invocations.

Shaitan
A class of corrupted djinn who follow Iblis and dedicate themselves to leading humans astray — distinct from Iblis himself, the Shayatin are a species of evil djinn who whisper doubts and temptations into the minds of the living.
Community Record
- [1]Eystein Halfdansson — Wikipedia. Wikipedia: 'Eystein Halfdansson' (summary referencing Ynglinga saga and Íslendingabók).wiki
- [2]Eystein Halfdansson — Wikidata. Wikidata entry summarising him as a 'semi-legendary Norwegian petty king'.other
