Grigor Tansad was a male scientist who served in the forces of Moff Kentor Sarne, Imperial warlord of the Kathol sector. In 8 ABY, he was assigned to science team MS-133 which was charged with excavating extensive ruins on the planet Aaris III. During the expedition, Tansad was responsible for discovering a chamber filled with pictographs. Tansad theorized that the glyphs corresponded to a dating system used by the Aaris, the native sentient species that had apparently gone extinct several thousand years prior.