During the reign of the Galactic Empire, the royal family of Kessel allowed for the harvesting of spice from one of the hemispheres on the planet Kessel. The royal family recognized but ignored the brutal working conditions against the slaves in the spice mines, as well as the fact that the mineral was transformed into a drug and used in criminal operations by groups such as the Pyke Syndicate.
- Star Wars Rebels: The Visual Guide (First mentioned)
- Solo: A Star Wars Story The Official Guide (First identified as royal family of Kessel)
- Solo: A Star Wars Story: Tales from Vandor