ROYAL

A member of a royal family

A queen regnant (pl: queens regnant) is a female monarch, equivalent in rank and title to a king, who reigns suo jure (in her own right) over a realm known as a kingdom; as opposed to a queen consort, who is the wife of a reigning king;

or a queen regent, who is the guardian of a child monarch and rules pro tempore in the child's stead, be it de jure in sharing power or de facto in ruling alone.

She is sometimes called a woman king.^[1][2]

A princess regnant is a female monarch who reigns suo jure over a principality; an empress regnant is a female monarch who reigns suo jure over an empire.

A queen regnant possesses and exercises sovereign powers, whereas a queen consort or queen regent shares her spouse's or child's rank and titles but does not share the sovereignty of her spouse or child.

The husband of a queen regnant traditionally does not share the queen regnant's rank, title, or sovereignty.

However, the concept of a king consort or prince consort is not unheard of in both contemporary and historical periods.

A queen dowager or empress dowager is the widow of a king or emperor; a queen mother is a queen dowager who is also the mother of a reigning sovereign.