Why was Ursula from the 'Little Mermaid' book exiled?

Ursula is based on the "sea witch" character in Hans Christian Andersen's story "The Little Mermaid". In the original story, the .... She was banished from Atlantica and made her home in the remains of a leviathan where she waits the chance to get her revenge on Triton and become Queen of Atlantica. read more

In the musical it was stated that she abused her power and abilities and dabbled in black magic which is strictly off limits and terrorized and repressed the merfolk . read more

A comic book series "Disney's The Little Mermaid" was released in 1992, revolving around the adventures of Ariel living under the sea as a mermaid. Ursula appears in a few issues, notably "Serpent Teen", which depicts how Ursula obtained the sea serpent carcass that makes her home. read more