Princess Erroria

Princess Erroria is the placeholder name of a female Pegasus pony with a vanilla coat, wisteria mane and tail, and blue irises. Despite her placeholder name, she is not depicted as a princess in any official material. Depending on the episode, her cutie markis either a single pink flower, a white feather, a horseshoe, or nothing at all, and she appears as four different kinds of pony, including as an Alicorn due to an animation error.

In When the Cold Breeze Blows Away,