Belief in the divine rights of kings means believing that kings are chosen by parliament. god. the lord protector. the people.

The answer is: God.

For many centuries, and still to this day in certain parts of the world, it was believed that a King was invested with absolute power over his people through divine intervention and choice, making his authority inalienable and his decisions infallible. However, at least in the Western world, different social revolutions have proved that Kings´ decisions are object of historical and economic factors that simply refute the myth of divine favor and assistance towards a king, holding them accountable to human jurisprudence and no longer divine intervention.  

eroupe is a great mideval place and alot of wars went on alao

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.