Quick clarification: Sidhe in this world roughly correspond to the fey elves of Irish mythology (as opposed to D&D elves, which also exist in this world as 'elves'), and are viewed as such by most in the world. They are the nobles and nobility of the fey races. The term 'fey', as used in this world, is used for both the individual members of the Sidhe, and those fey who aren't nobility (such as dryads, nymphs, etc). In D&D terms, they are all the Fey subtype.