Levirate marriage is a type of marriage in which the brother of a deceased man is obliged to marry his brother's widow. Levirate marriage has been practiced by societies with a strong clan structure in which exogamous marriage (i.e. marriage outside the clan) is forbidden.
The term levirate is derived from the Latin levir, meaning "husband's brother".
Widow inheritance
Levirate marriage can, at its most positive, serve as protection for the widow and her children, ensuring that they have a male provider and protector. Levirate marriage can be a positive in a society where women must rely on men to provide for them, especially in societies where women are under the authority of, dependent on, in servitude to or regarded as possessions of their husbands, and to ensure the survival of the clan. The practice of levirate marriage is strongly associated with patriarchal societies. The practice was extremely important in ancient times (e.g., Ancient Near East), and remains so today in parts of the world. Having children enables the inheritance of land, which offers security and status.
A levirate marriage might only occur if a man died childless, in order to continue his family line. The anthropologist Ruth Mace also found that the practice of widow inheritance by younger brothers, common in many parts of Africa, serves to reduce population growth, as these men will be forced to marry older (and hence, less fertile) women.
YibbumJewish views on incest and Incest in the Bible
In the Hebrew Bible, a form of levirate marriage, called yibbum, is mentioned in , under which the brother of a man who dies without children is permitted and encouraged to marry the widow. Either of the parties may refuse to go through with the marriage, but both must go through a ceremony, known as halizah, involving a symbolic act of renunciation of a yibbum marriage. Sexual relations with one's brother's wife are otherwise forbidden by Leviticus 18 and Leviticus 20.