Wikipedia's page about monarchies states that they might have "predetermined limits on the length of their tenure". However reading the page there is no mention about any current monarchy who does ...
I have read that rotation among nine hereditary rulers of provinces determines who is King of Malaysia during a given 5-year term. This seems to stand out from related practices e.g. over the history ...
In history texts, past foreign monarchs are normally referred to by the English version of their name, e.g. Francis I (not François), Charles V (not Carlos, Karel, or Karl), Phillip II (not Felipe). ...