The events known as the Destruction of Xizor's Palace involved Luke Skywalker's operation to free Princess Leia Organa, who was being held captive by the Dark Prince Xizor and his Black Sun criminal empire. This took place on the planet Coruscant during the year 3.5 ABY. Following the successful liberation of the princess, Lando Calrissian eliminated Xizor's base of operations by throwing a thermal detonator down a palace's waste disposal shaft, resulting in the building's annihilation and a severe blow to the Black Sun's power.