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 Norsehjǫrr: 'sword'). Hjörleifr settled on land on the mountain Hjörleifshöfði (east of Vík) which was named after him. He was later murdered by his thralls, many of whom were Irish or Scottish.[3] The fugitive slaves were killed by Ingólfr Arnarson, thereby saving all the women[which?] who were held captive by the slaves.[4]