Darth Vesper, born Valen Gavius was a Dark Lord of the Sith and the son of Koren Gravus and fraternal twin brother of Darth Ahri. Vesper was born from a secret lab on the planet Naboo, in the Convergence estate that once belonged to Palpatine's noble family, through genetic manipulation and using cloning tanks as a medium for growth a number of fetus were grown and experimented until only a surviving pair of fetus remained.