From 1970 to 1986, she was a professor at the law department of the University of Iceland, and was the first woman to be appointed to the Supreme Court, serving from 15 September 1982 to 30 June 1983, and again from 1 July 1986 to 15 April 2006.
[2][1] Born in Reykjavík on 1 May 1936, Guðrún Erlendsdóttir was the daughter of Erlendur Ólafsson and Jóhanna Vigdís Semundsdottir.
On 9 July 1961, she married the lawyer and athlete Örn Clausen (1928–2008) with whom she had three children: Ólafur Arnarson, Guðrún Sesselja Arnardóttir and Jóhanna Vigdis Arnardóttir.
[2][1] Guðrún Erlendsdóttir also chaired the Equal Opportunities Council (1976–1979), served on the Censorship Committee (1974–98) and was Deputy Chair of the Board of the Icelandic Legal Association (1981–1995).
[1] She has published a number of books and articles on family law and sexual equality.