Đinh Bộ Lĩnh
Legend has it that Đinh Bộ Lĩnh ventured into this cave and received an oracle while he was struggling for control of the country with twelve rival warlords. He made offerings to the local deity, who foretold that in the end Bộ Lĩnh would conquer all of his enemies. The oracle turned out to be true: in 968, Đinh Bộ Lĩnh defeated the last of the twelve warlords and unified the country under his personal rule as the first emperor of Vietnam.