Justin Illéa is a historical character in The Selection Series. He was the son of Damon Illéa and the grandson of Gregory Illéa. He married Abby Illéa and became the third king of Illéa. He died only three years after his marriage and reign.
After Justin's death, in order to continue the royal lineage, Abby married his cousin, Porter Schreave, who became the new king, and they had a son, Clarkson. However, the real reason of Justin's death was that Abby liked him, but cared more for his cousin. She and Porter conspired to kill Justin and Abby ended up poisoning him. Only Gregory and a few people who have read his diaries know about the truth.