The Imperialis was a luxury pleasure craft owned by Supreme Chancellor and eventually Galactic Emperor Sheev Palpatine during the Galactic Civil War. While the Imperialis was stolen by the gambler Lando Calrissian and wrecked on the moon Quantxi, the Emperor had several replicas of the vessel housed at his Observatories, which were scattered throughout the galaxy. In 5 ABY, the bounty hunter Mercurial Swift found information about Fleet Admiral Gallius Rax's origins aboard the Imperialis's computers.