Now this is ship art.
After the Germans lost the war, the Imperitor passed into the hands of the Allies, and Cunard kindly offered to take care of the vessel. After some fixing and refitting, it was off . . . but then the old name came back to haunt it.
During the voyage, Imperator developed a severe list which was found to be caused by a faulty ash ejector. Cunard decided that the ship was in need of a major overhaul and she was withdrawn from service.
After it was brought up to standards it was renamed Berengaria, after the wife of Richard I. In 1920 it was helmed by Captain Arthur Roston, who was in command of the Carpathia when it picked up survivors from the Titanic.