The demons of Jacques Auguste Simon Collin de Plancy's Dictionnaire Infernal

It seems like it should be much more systematic. Like, the major demons would personify major vices, and the lesser demons would represent their more specific manifestations. So maybe the demon of pride has a child in envy, and their physical grotesqueries correspond to the pitfalls of each. You’d have a corresponding system of angels/virtues, and together they would form cohesive a philosophical system or model of human behavior.