Situation in which kinship is tracked through the mothers family.

That situation is called Matrilineality.

A matriline is a line of descent from a female ancestor to a descendant in which the individuals in all the generations are mothers - in other words, a "mother line".

Within matrilineality there are some systems to be considered:

matrilineal primogeniture the eldest female child of the decesased person is entitled to the hereditary succession before her younger sisters, and her brothers are not entitled at all. matrilineal ultimogeniture where the youngest daughter is the heir. matrilineal seniority the eldest sister is succeeded by her next eldest sister

Matrilineality

Explanation:

Matrilineality is the imitation of a family by the female lineage. It may also interact with a societal way in which each body is recognised besides their matriline - their mother's genealogy - and which can include the inheritance of wealth and/or ownership. A matriline is a chain of relationship from a fertile ancestor to a descendant in which the selves in all intermediate reproductions are mothers - in other terms, a "mother group". In a matrilineal descent order, an individual is supposed to relate to the same family group as their mother.