The historical practice of monarchy - the rule of a single individual who holds the position of the head of state, often for life and by hereditary right - may seem like an echo from the bygone era. However, as of today, there are still different forms of monarchy in operation across global landscapes. Besides the popular King or Queen, you will find realms ruled by Emirs, Sultans, Grand Dukes, or even a Pope. The rules of succession and the power that these monarchies hold may differ significantly from one to another, ranging from pure ceremonial roles to exerting substantial political powers.