“Thorstein had a son by his wife, and, when the boy was born, he was brought to his father. Thorstein looked at him and said: ‘That boy shall be named Ingimund, after the father of his mother, and I expect him to be lucky on account of his name” (Vatnsdæla, c. 7). “Ingimund, son of a famous Viking who had helped King Harald Fairhair in the battle of Hafrsfjord, had married Vigdis, daughter of Thórir Jarl. While on her way to Iceland she gave birth to a boy, who was handsome. Ingimund looked at him and said: ‘He shall be named Thorstein, and I think my father’s luck will follow him.’ Some time after he had another son, and said: ‘The boy is large-limbed and has sharp eyes. If he lives there will not be many to equal him; he will become a great champion, if I am not much mistaken. I will not forget our kinsman Jökul, as my father begged of me, and he shall be called Jökul” (Vatnsdæla, c. 13). It was considered lucky to have two names, and it was thought that by adding the name of a god to a person’s name he would acquire the special protection of this deity; hence such names as Thorólf, Thorstein, &c., from _Thor_, the most popular prefix. Sometimes the general name of the god, such as _As_ or _Gud_, or the word _Ve_ (holy), was added or prefixed. “Helgi, son of Thorgils, was a tall, strong and hardy man; he was fine-looking and stout. He did not talk much in his youth, and was even then overbearing and headstrong; he was ingenious and whimsical. It is said that one day, when the cattle were at the milking-place, a bull was there which belonged to the farm, and that another bull came, and they butted each other. The young Helgi was outside, and saw that their bull was defeated, so he went away and fetched an iron spike and tied it to the forehead of the bull, and thus it defeated the other. From this he was called Brodd-Helgi, and he was more skilled than any other man who grew up in the district” (Thatt of Thorstein the White, c. 1). “Thorólf in his old age married Unn, and by her had a son named Stein. This boy Thórólf dedicated to his friend Thór, and he was therefore called Thórstein” (Eyrbyggja, c. 7). “Thorstein was married to Thóra, and by her had a son, who was water-sprinkled and named Grim; his father gave him to Thor, saying he would become _hofgodi_ (temple-priest); he was on that account called Thorgrim” (Eyrbyggja, c. 20). When a woman gave birth to a child the household and neighbours had to be present.