The Aen Seidhe are elves who came to the Continent on their white ships before the humans appeared, unlike the Aen Elle who inhabit a completely different world that the one in which their counterparts reside.
- The Aen Seidhe are likely based on the light elves of Norse mythology and the Seelie Court of Fairies in Scottish folklore. Their name is also inspired by the Aos Sí, older form of aes sídhe, a nation of faries and elves in Irish Mythology who lives in a parallel world from the humans.
- In The Lady of the Lake, it's stated that a Door opened up and the elves departed the known world. It's unclear though if this means every Aen Seidhe left or where they ended up.