Prince Croacus

Prince Croacus is a deceased (or rather, "wilted") prince of the Floro Sapiens. He was Queen Croacus the Second's sibling, and was going to inherit the throne. However, he suddenly wilted in the year 444, which not only caused his death, but that of his father as well. Queen Croacus the Second took the throne in his place.

Trivia

 * Prince Croacus dying in 444 is an example of a common Japanese association of the number four with death, as "four" and "death" are represented by the same word (shi) in Japanese.