The story of the early settlement of Iceland is told in the compilation known as Landnámabók.
[2] Hjörleifr was the blood brother of Ingólfr Arnarson, the first settler of Iceland in the late 9th century.
While raiding in Ireland, he found an underground passage and killed a man to take his sword.
From this event his original name Leifr was lengthened to Hjǫrleifr (Old Norse hjǫrr: 'sword').
Hjörleifr settled on land on the mountain Hjörleifshöfði (east of Vík) which was named after him.