Ciaphas Cain was an Imperial Commissar. It saw active service in the last century of the 41st Millennium, and was over 200 years old when it was reinstated into service during the 13th Black Crusade of Abaddon the Despoiler, and it is a fact that it survived more than a quarter of a century into the Millennium. 42. Currently, Ciaphas Cain has already passed away, buried with full honors.