What archfey exist in Eberron lore that would make a suitable warlock patron?

I’m planning on making an Archfey warlock for an upcoming Eberron game. To flesh out my character’s backstory, I want to know more about what kind of "fey" entities such a warlock might form a pact with.

For context, the character’s backstory is that they are a Valenar elf who’s ancestor that he has to emulate was an "Eldritch Knight" or similar, some kind of battlemage anyway, except that my character isn’t very strong or smart (STR and INT are his dump stats), so he instead formed a pact with an archfey being to make up the difference, becoming a Pact of the Blade warlock so that he could better emulate his ancestor.

The reason I’ve picked the Archfey archetype is because the Valenar seems to be rather connected with fey, at least considering the various "Valenar xxx" animals listed in Eberron: Rising from the Last War.

I can of course work with my DM to just "invent" an archfey if need be, but I wanted first to see if there are any existing named archfey within any Eberron lore (from any edition of D&D if 5e doesn’t have anything), and bonus points if that archfey is associated with the Valenar elves at all.