Absolute monarchies      Semi-constitutional monarchies      Parliamentary constitutional monarchies      Commonwealth realms (parliamentary monarchies in personal union)      Subnational monarchies

A constitutional monarchy is a form of monarchy. In a constitutional monarchy, a king or queen is the official head of state. However, their powers are limited by a constitution and they usually do not have much real power, as the legislative branch is the primary governing body. A constitutional monarchy is different than an absolute monarchy because in absolute monarchies, the monarch is able to rule with full power, and is able to change the laws freely.