Monarch
Monarchs were very common in history until the 20th century. Most European countries had monarchs in past centuries, but most no longer have them. Some countries that still have monarchs have other leaders with the actual power. Most monarchies are hereditary monarchies. Some countries, however, elect their monarch, instead of using inheritance, like the Holy Roman Empire and Malaysia. Some republics, such as the Dutch Republic or North Korea, had or have a hereditary ruler but do not call him a "monarch".