Queen Chrysalis

Queen Chrysalis is the matriarch of the Changelings and major villain. She is known for her multiple assault on Equestria. This includes the time she disguised herself as a princess to gain trust and eventually the entire kingdom, or when she ordered her Changelings to kidnap and replace many important people in the kingdom. Yet she always lost. And now she sits, banshied and without a hive, planning her revenge.