Who was the father of the person Þórðr Kolbeinsson was the court poet for?
Þórðr Kolbeinsson:  He was the court poet of Eiríkr Hákonarson and some 17 stanzas of his poetry on the earl are preserved in the kings' sagas. Eiríkr Hákonarson:  He was the son of Earl Hákon Sigurðarson and brother of the legendary Aud Haakonsdottir of Lade.
Earl Hákon Sigurðarson