A colony of abersyn symbiotes, under the command of the Queen of Ktath'atn, existed on the planet Ktath'atn for a considerable number of standard years. In 0 ABY, a team from the Alliance to Restore the Republic invaded the parasitic hive of the reigning queen. During this invasion, the hive briefly fell under the influence of Jedi Padawan Luke Skywalker, and smuggler Han Solo, who temporarily renamed the queen's hive the Kingdom of Han in his own honor.