After nephew Jwei-shwan, Prince Huang's youngest son, was killed in an assassination attempt by Lieutenant Colonel Gregor Hofschulte, Gustav XI decreed that no person except members of the Imperial Guard was allowed to carry weapons of any kind in the presence of a member of the Imperial family. (HH6, HH10)
When the Republic of Haven won the offensive in the Second Havenite-Manticoran War, Emperor Gustav threw the Imperial Andermani Navy into the war on the Manticoran side, once again changing the balance of power. (HH10)
- ↑ His brother's son was the second in line to the throne, indicating the emperor had no male heir of his own.
| Preceded by|| Andermani Emperor || Succeeded by|