Yao (Traditional Chinese:堯, Simplified Chinese:尧) (2358 - 2258 BC) was a legendary Chinese ruler, one of the Three Sovereigns and the Five Emperors. Also known as Yaotang-shi (陶唐氏), he was born Yi Fangxun (伊放勳) or Yi Qi (伊祈) as the second son to Emperor Ku and Qingdu (慶都). He is also known as Tang Yao (唐堯). Wikipedia
The definitive Wikipedia entry for Yao. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Yao_%28ruler%29