When he was drunk, he was accustomed to battering his brothers, including Gao Zhan, and two of his brothers, Gao Jun (高浚) the Prince of Yong'an and Gao Huan (高渙, note different character than their father) the Prince of Shangdang, were imprisoned and later killed cruelly.
When intoxicated, he frequently assaulted his brothers, including Gao Zhan, and two of his siblings, Gao Jun, the Prince of Yong'an, and Gao Huan, the Prince of Shangdang, were detained and subsequently brutally murdered.