The Crystal Empire is a fictional kingdom in the animated television series My Little Pony: Friendship Is Magic. It is known for its beautiful, shimmering architecture made of crystal and its vibrant, colorful inhabitants called Crystal Ponies. The empire is located in the frozen north of Equestria and is protected by a powerful magical barrier. The Crystal Empire was first introduced in the two-part season three finale, "The Crystal Empire." It is ruled by Princess Cadance and her husband, Shining Armor. The empire's history is tied to the Crystal Heart, a magical artifact that protects the kingdom and its citizens from dark forces.