Who was the father of the person Þórðr Kolbeinsson was the court poet for?
Þórðr Kolbeinsson Þórðr Kolbeinsson ("Thordr Kolbeinsson") was an 11th-century Icelandic skald, or poet. He was the court poet of Eiríkr Hákonarson and some 17 stanzas of his poetry on the earl are preserved in the kings' sagas. The following example is from Eiríkr's campaign in England with Canute the Great.
Thorolf Kveldulfsson Thorolf Kveldulfsson (modern Icelandic: Þórólfur Kveld-Úlfsson) was the oldest son of Kveldulf Bjalfasson and brother of the Norwegian/Icelandic goði and skald Skalla-Grimr. His ancestor (great uncle) Hallbjorn was nicknamed "halftroll", possibly indicating Norwegian-Sami ancestry.