a composite family consisting of several generations. In such a family, the family nucleus is distinguished from the parental family and the derived family (families) formed by the marriages of the adult offspring of the parental family. In addition to the family nucleus, the extended family also includes other relatives – aunts, uncles, and so on, as well as non-relatives associated with this family. There are two main features of an extended family: cohabitation of relatives of different generations and joint economic activity – ownership of property, housekeeping. In sociology and family psychology, the features of extended families are studied, for example, intergenerational interaction in such families.