I’ve had a hard time finding books and media that really talk about the beginning of that system. All I ever hear is about the divine right to rule, but nothing about how that philosophy actually influenced social organization to such a degree across Europe.

My assumption is that the barbarian tribes simply consolidated power after the fall of the Western Roman Empire and economies became localized due to the infrastructure decay, which allowed the social organization of pagan polytheism to blend with Christian monotheism and birth the archetypical castles, peasants, kings, and jesters imagery that defines common understanding of European history, but I think I’m just waxing poetic for my own entertainment. Am I somewhat on track? I just can’t find a lot of specific stuff on that shift and none of my history teachers ever touched on it.