Original: Legend says that about two thousand years ago, Emperor Suinin ordered his daughter, Princess Yamatohime-no-mikoto, to set out and find a suitable permanent location from which to hold ceremonies for Amaterasu Omikami, the Sun Goddess.
Simplified: One of Suinin's daughters was Yamatohime-no-mikoto. She established a site for ceremonies honoring the Shinto sun goddess (Amaterasu Omikami).