Julius was the King of Midland's younger brother and heir to the throne—a position that clearly went to his head. He was arrogant and dismissive, convinced that commoners could never rise above their station no matter what they did. This rigid worldview made him see Griffith as a genuine threat, enough that he actually tried to have him killed.
Power was pretty much all Julius cared about. He trained his son to master swordsmanship specifically so the kid could marry the princess and consolidate their family's influence. He was also willing to betray his own brother in the most intimate way possible—he slept with the queen, his brother's wife. For someone obsessed with bloodlines and noble status, Julius had no problem crossing every moral line when it suited him.
Content compiled by AnimeList.moe from publicly available sources.
