Princess Celestia, My Little Pony Friendship is Magic Wiki
For this character's human counterpart, see Principal Celestia. Princess Celestia, called Queen Celestia in one comic and early development, is an Alicorn pony, the former co-ruler of Equestria alongside her younger sister Princess Luna, and the adoptive aunt of Princess Cadance. In addition to her responsibility of raising the sun, she has also been the teacher of Twilight Sparkle and Sunset Shimmer at different periods in time, often addressing Twilight as "my faithful student" while mentoring
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