Because that was how practically all governments then worked.
The Greeks did not have princesses - the monarchies were dismissed long before the establishment of the Greek city-states of history.
what percent of the world are monarchies
The True Law of Free Monarchies was created in 1603.
Greek governments were mainly absolute monarchies/dictatorships and aristocracies. Though it was through Ancient Greece that the basis of the Republic was formed, few cities outside Athens embraced the new found form of governance.
Nothing
KingshipAbsolutism
There are different types of governments in Europe. Some are monarchies, constitutional monarchies, and republics.
republic
There are still some functional monarchies around. Saudi Arabia for example still has a ruling family with government influence.
The underlying assumption of this question, which is that constitutional monarchies are considered democracies by dint of being constitutional monarchies, is false. "Constitutional Monarchy" simply means that the power of the monarch (king) is limited by a constitution. This constitution can be enforced by some kind of oligarchy, aristocracy, or the common gentry. If the constitution is enforced by an oligarchy or aristocracy, the resulting state is not a democracy, whereas if it is enforced by the common gentry, it is democratic.Now, since almost all current constitutional monarchies are of this latter variety (monarchies with a constitution enforced by common people), people generally drop the intermediate step of separating non-democratic constitutional monarchies from democratic constitutional monarchies and refer to constitutional monarchies as a form of democracy.
Growth of national monarchies.
Monarchies.