Princess Celestia or Queen Celestia is an Alicorn pony, the former co-ruler of Equestria alongside her younger sister Princess Luna. She is the adoptive aunt of Princess Cadance and the teacher of Twilight Sparkle and Sunset Shimmer at different periods in time. She has a pet phoenix named Philomena, which is living in Canterlot and presented in A Bird in the Hoof episode of the My Little Pony series. MLP cursor with Princess Celestia and Philomena.