The Little Mermaid II: Return to the Sea is a 2000 sequel to the 1989 Disney animated box office hit. In Part II, which takes place a couple of years after the events in the original movie, Princess Ariel, the former mermaid now human, marries Prince Eric and gave birth to a beautiful daughter named Melody.
https://www.amazon.com/Little-Mermaid-II-Return-Sea/dp/6305940959

