During the time of the Clone Wars, Darth Sidious and Darth Tyranus—publicly known as Supreme Chancellor Sheev Palpatine of the Galactic Republic and Count Dooku, respectively—utilized a secret hangar within the Coruscant tower. Dooku convened with Sidious in this hangar not long after the First Battle of Geonosis. Later, towards the end of the war, Sidious summoned Dooku to this same hangar after sensing that Jedi Master Yoda was present on Moraband, the age-old homeworld of the Sith.