After Archduke Poggle the Lesser was killed on the Outer Rim planet Mustafar by the Sith Lord Darth Vader in 19 BBY, a new Geonosian archduke was appointed by the Stalgasin hive queen by 18 BBY. The Geonosian served as the public leader of the Geonosian homeworld of Geonosis and was tasked with overseeing their soldiers and worker drones.
However, as the Galactic Empire's Lieutenant Commander Orson Callan Krennic informed Admiral Wilhuff Tarkin aboard the latter's Imperial-class Star Destroyer by 18 BBY, designating a new archduke was little more than a placatory gesture. The entire Geonosian species had effectively fallen under the control of the Empire, which used them as a labor force to build the DS-1 Death Star Mobile Battle Station.
The archduke was mentioned in the 2016 novel Catalyst: A Rogue One Novel, written by James Luceno.
The archduke was mentioned in the 2016 novel Catalyst: A Rogue One Novel, written by James Luceno.