Lady Anwen is a Mentor at Foxfire who was mentioned in Book 1: Keeper of the Lost Cities. With her Mentor title, it is shown that she is a member of the nobility, and has hence fit the requirements. She teaches Multispeciesial Studies, which is shown through her instructing her prodigy, Sophie Foster. She is presumably quite old considering that she "hadn't laughed so hard in 324 years" after Sophie had burned a hole Lady Galvin's cape (The Great Cape Destruction). She also gave Sophie a 100 on her final exam during her Tribunal, saying that Sophie knew more about humans than most other prodigies.
"Anwen" (pronounced ahn-wen) translates to "comfort" in Mandarin Chinese.