The main causes of trouble families or relations were: poverty, remarriages, extramarital relations, polygamy (plural marriages), polygyny (The condition or practice of having more than one wife at one time), levirate (The levirate decrees a dead man's brother to be the widow's preferred marriage partner) and
sororate (The
sororate decrees the marriage of a man to his deceased wife's sister).
Nthlapo, "The African Family and Women's Rights: Friends or Foes?" in African Customary Law (Cape Town: Juta & Co, 1991) 135 (noting that certain customary law and tradition are often considered discriminatory against women: polygamy, lobolo, the levirate, the
sororate, child betrothal and mourning taboos).