A matriarchy is a social unit governed by a woman or group of women. It isn't certain that a true matriarchal society has ever existed, so matriarchy is usually treated as an imaginative concept. But there are societies in which relatedness through women rather than men is stressed, and elements of matriarchy may be stronger in certain societies than they are in most of the Western world. And most of us can point to families in which a woman has become the dominant figure, or grande dame, or matriarch.