The deceased, Ndavheleseni Lazarus Tshivhase, died in August 2020. The first respondent alleged that she and the deceased concluded a customary marriage on 24 December 1966. The appellant, who married the deceased by civil rites in 1977, denied the existence of any valid customary marriage. After the deceased’s death, the first respondent applied to the High Court to have the 1977 civil marriage declared void ab initio and to set aside a joint will executed by the deceased and the appellant, relying primarily on an entry in her Venda-issued identity document as proof of the alleged customary marriage. The High Court accepted this as prima facie proof, declared the civil marriage void, set aside the joint will, and dismissed a non-joinder objection raised by the appellant. The appellant appealed to the Supreme Court of Appeal.