Eulyn was a Keshiri female who lived on the planet Kesh around 5000 BBY. The mother of widowed geologist Adari Vaal, Eulyn cared for her two grandchildren, Tona and Finn, in a wooden house in the city of Tahv inherited after the death of her son-in-law, Zhari Vaal. Adari became notorious for teachings contrary to the common religion of the time, leading Eulyn to regard her daughter as a heretic. After their house was bombarded with rocks by an angry mob, Adari fled and stumbled across a group of Sith, who proclaimed themselves to be gods. Although Adari was honored for her role, Eulyn never truly understood her daughter's canonization and died sometime before 4975 BBY.