Iceland uses patronymic naming [1] so you get a lot of this sort of thing. A child's surname will be their father's name plus a suffix depending on the child's

Iceland uses patronymic naming [1] so you get a lot of this sort of thing. A child's surname will be their father's name plus a suffix depending on the child's sex. So the son and daughter of Thor will have surnames like Thorson and Thorsdottir, literally "Thor's son" and "Thor's daughter" [1] https://en.m.wikipedia.org/wiki/Icelandic_name https://en.m.wikipedia.org/wiki/Icelandic_name