Sonsigo was a Bravaisian gemologist and the podmate of Munduri. The pair worked together and were attracted to glittering gems and metals, offering their services for the appraisal of precious stones harvested on newly catalogued worlds. They would pay top prices for any gems or metals that they decided to buy. Both Sonsigo and Munduri were present in the castle of the pirate Maz Kanata on the planet Takodana when the smuggler Han Solo arrived with the scavenger Rey, the former stormtrooper Finn and the astromech droid BB-8. Soon after the groups arrival, many of the establishment's occupants rushed outside to witness the destruction of the Hosnian system by the First Order's Starkiller Base superweapon. The castle itself was soon attacked and destroyed by the forces of the First Order. So