Classification
A particular case is the French co-prince of Andorra, a position held by the elected President of France. Nonetheless, he is still generally considered a monarch because of the traditional use of a monarchical title (even though Andorra is, strictly speaking, a diarchy.) Similarly, the Yang di-Pertuan Agong of Malaysia is considered a monarch despite only holding the office for five years at a time. On the other hand, several life-time dictators around the world have not been formally classified as monarchs, even if succeeded by their children, but that may be more to do with international political sensitivities than with semantics.
Read more about this topic: Monarch