Constitutional monarchy, also known as limited monarchy, parliamentary monarchy or democratic monarchy, is a form of monarchy in which the monarch exercises their authority in accordance with a constitution and is not alone in making decisions. Constitutional monarchies differ from absolute monarchies in that they are bound to exercise powers and authorities within limits prescribed by an established legal framework.
The three constitutional monarchs of the Scandinavian kingdoms of Sweden, Norway & Denmark gathered in November 1917 in Oslo. From left to right: Gustaf V, Haakon VII & Christian X.