Halldórr ókristni was a Norse

Norsemen

Norsemen is used to refer to the group of people as a whole who spoke what is now called the Old Norse language belonging to the North Germanic branch of Indo-European languages, especially Norwegian, Icelandic, Faroese, Swedish and Danish in their earlier forms.The meaning of Norseman was "people...

 skald

Skald

The skald was a member of a group of poets, whose courtly poetry is associated with the courts of Scandinavian and Icelandic leaders during the Viking Age, who composed and performed renditions of aspects of what we now characterise as Old Norse poetry .The most prevalent metre of skaldic poetry is...

, active around the year 1000. The only thing known about him is that he was one of the court poets of Earl Eiríkr Hákonarson

Eiríkr Hákonarson

Eiríkr Hákonarson or Eric of Norway or Eric of Hlathir was earl of Lade, ruler of Norway and earl of Northumbria.-Background:...

. Eight dróttkvætt verses by him are extant, preserved in the kings' sagas

Kings' sagas

The kings' sagas are Norse sagas which tell of the lives of Scandinavian kings. They were composed in the 12th to 14th centuries in Iceland and Norway....

. They contain a lively description of the battle of Svolder

Battle of Svolder

The Battle of Svolder was a naval battle fought in September 999 or 1000 in the western Baltic Sea between King Olaf Tryggvason of Norway and an alliance of his enemies...

. Heimskringla

Heimskringla

Heimskringla is the best known of the Old Norse kings' sagas. It was written in Old Norse in Iceland by the poet and historian Snorri Sturluson ca. 1230...

attributes at least some of those stanzas to a flokkr on Earl Eiríkr and scholars sometimes refer to them as Eiríksflokkr. The following is one of the eight verses.

Fjörð kom heldr í harðan, hnitu reyr saman dreyra, tungl skórusk þá tingla tangar, Ormr enn langi, þás borðmikinn Barða brynflagðs reginn lagði við Fáfnis síðu. Eiríksflokkr 3, Finnur Jónsson Finnur Jónsson Finnur Jónsson was an Icelandic philologist who made extensive contributions to the study of Old Norse literature.Finnur graduated from Menntaskólinn í Reykjavík in 1878 and went to Denmark for further studies at the University of Copenhagen. He received a doctorate in philology in 1884 with a... 's edition

A year since, the Long Serpent suffered a harsh trial. Blood-reeds beat each other; battered were moons of ship's prow, when the god of the armour- ogre laid high-sided Barði—the jarl did battle by the isle—at side of Fáfnir Fafnir In Norse mythology, Fáfnir or Frænir was a son of the dwarf king Hreidmar and brother of Regin and Ótr. In the Volsunga saga, Fáfnir was a dwarf gifted with a powerful arm and fearless soul. He guarded his father's house of glittering gold and flashing gems... . Finlay's translation

The extant sources do not explain the epithet "ókristni" (unchristian) but it is known that although Earl Eiríkr adopted Christianity, at least nominally, he was tolerant of paganism and his court poets praised him in traditional pagan terms.