Arabella is one of the granddaughters of King Triton and a niece of Ariel. She invited Ben, Mal, Evie, Jay, and Carlos to attend the annual Seaside Festival, a daylong celebration held among the Merfolks. She was at her grandfather's party when the storm appeared in Auradon.


  • As a descendant of King Triton, Arabella could be a mermaid, or at least, a half-mermaid. It is then revealed that she does have a tail.
    • She seems to be fond of the color lavender, a color that both Alana and Andrina shared. One of them could be Arabella's mother.
  • She is also related to Ursula and Uma.


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