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Princess Attina is a major character in The Little Mermaid franchise. She is King Triton and Queen Athena's oldest daughter, the sister of Alana, Adella, Aquata, Arista, Andrina, and Ariel, the sister-in-law of Prince Eric and the maternal aunt of Princess Melody.
As the eldest and heir to the throne of Atlantica, Attina becomes the most responsible of her sisters and finds herself in the maternal role of them after their mother's untimely demise.