Queens Regnant
<p >A <b>queen regnant</b> (plural: queens regnant) is a female <a href="http://en.wikipedia.org/wiki/Monarch" title="Monarch" >monarch</a> who reigns in her own right, in contrast to a <a href="http://en.wikipedia.org/wiki/Queen_consort" title="Queen consort" >queen consort</a>, who is the wife of a reigning king. An <b>empress regnant</b> is a female monarch who reigns in her own right over an <a href="http://en.wikipedia.org/wiki/Empire" title="Empire" >empire</a>.
A queen regnant possesses and exercises sovereign powers. The husband of a queen regnant does not usually share his wife's rank, title or sovereignty. A queen consort shares her husband's rank and titles, but does not share the sovereignty of her husband.
A <a href="http://en.wikipedia.org/wiki/Queen_dowager" title="Queen dowager" >queen dowager</a> is the widow of a king who reigned in his own right. A <a href="http://en.wikipedia.org/wiki/Queen_mother" title="Queen mother" >queen mother</a> is a queen dowager who is also the mother of a reigning sovereign.</p>