Princess Celestia (born October 10, 1010 or 4010/10/10 in Equestria, died May 3, 2015 anywhere), also known as "You-know-Who" was an Alicorn and a character of My Little Pony: Friendship is Magic, She was the dictator of Equestria who, for some reason, prefered being called princess rather than queen. She appeared first to be kind and caring to her subjects, but was, in reality, a power hungry and sadistic tyrant.