Historical Storyteller
Four Thousand Club
This, definitely this.
We have to consider the fact that humans significantly outweigh the fae in terms of number, are physically stronger, slightly more strategic. Even their origins were made on equal straits, a mutual understanding.
So, why are they just simple vassals?
Good point, Eleph. I may not be the best person to answer this but I shall give you my two cents. The Summer Fae were originally humans themselves, but they were somehow magically mutated by Light magic and are thus more magically badass than the humans.
You know, as I try to answer this question I keep having more and more doubts... damn.
There must have been some point in Elysian history that humans were the dominant race here and Summer Fae were left biting the dust. There must have been some power struggle for government between these two races, that must explain why sometimes Summer Fae come out on top and then later humans follow up.
The advantages of the Summer Fae are magic, experience in bureaucracy and a monopoly on clerical positions. The advantages of the humans are raw military power, their much greater population, and them dominating almost every aspect of life at the local level.