1) Ana and Elsa are Rapunzel's cousins. 2) It was on the way to Rapunzel's wedding that Ana and Elsa's parents shipwrecked. 3) It was their shipwreck that Ariel sees in the beginning of the Little Mermaid. 4) But they didn't die. They washed up on an island and gave birth to a son named Tarzan. They were later killed by a wildcat. Mind = Blown.