Thorkel Amundason, also known as Thorkel Fóstri (Thorkel the Fosterer), was an Orcadian man, foster father of Thorfinn the Mighty, and killer of Earl Einar...

among the farmers led to a certain Thorkel Amundason going to Einar to protest the levies. Einar agreed to Thorkel's request the first year he was asked...

by Thorkel Amundason and, in danger of his life, he fled to Thorfinn's court in Caithness. He became his foster-father, hence his by-name, "Thorkel Fosterer"...