If we’re using the fey and queen connection, the could call themselves the Court of ravens, or just the “court” in in general, it’s less epic than some suggestions but i think it make sense.
That being said, calling yourself apart of someones court is rather brazen, so they’ll probably not fo that out of fear that it might anger her.
The name probably want to have something that mark them as subservient to the wueen rather than just a connection since they start it without her present, so “servitors, servants, supplicants or something akin to it” should probably be in the name.
Or considdering how important oaths are to fey, calling themselves the Ravrnsworn or some such work too.