" To further cement the Mongol-Tibetan alliance, the great-grandson of Altan Khan—Yonten Gyatso (1589–1616)—was made the fourth Dalai Lama. ###>" To further cement the Mongol-Tibetan alliance, the great-grandson of Altan Khan—Yonten Gyatso (1589–1616)—was made the fourth Dalai Lama.