The Prince

In the book "The Prince" the Arthur describes the differences of states, and it also notes that it's easy to have government that's hereditary in state. Some of the two reasons for a principality is, those of a state familiar with the prince and his family and are used to his or their rules. The prince only has to keep past foundation together, while adapting these institutions to current events. Another one of these rules is if the prince commits something wrong against his own people he would be removed from the ruling family.

Machiavelli talks to you in the book about how maintaining a new principality is more harder than maintaining a hereditary state. And how people would willingly trade there ruler that they have now for another, wishing the new ruler will be better than the one they had. When a prince takes over another prince's spot, he finds himself in a difficult situation with the people who put him in charge of the old ruler. If he can't maintain the support of the people because he would not be able to fulfill all of their expectations then the people just traded there old ruler for one that doesn't know what he is doing.

It is less stressful to maintain control of a new principality. Where the people share the same language and customs of there prince's own country. If this is the problem, the new prince has to do two things which is destroy the old rulers family and maintain the principality's laws and taxes. And that means people would live good now that there old rulers way are out of the window.

But then again you will have new states that have different languages and customs from those of the prince and they are more difficult to maintain. The prince's most effective options is buying or building a house were his people are and that mean he can fix problems quickly and efficiently. Another thing is people who are inclined to do good things and live a straight life will have more to show their allegiance to the prince and those who are bad will have a reason to fear him. Invaders will think its over before attempting to take over the state.