Fu Xi

Fu Xi, ( Chinese : 伏羲, 庖羲, 宓羲 ) , said to be occurred around 29th century BCE, is respected as the first emperor in ancient China. According to the ancient legend, he was born in a land at the far northwest part of China, now known as Tianhsui at Gansu province. 

There is also a legend which spreads among the southwest part of China, the Yao, the Hmong, the Kam and Yi or Lolo people, from their legends it said that Fu Xi has married Nuwa, who was his sister and they became the first ancestor of the Chinese people. However, such legend only occurred after the Han dynasty, and before that time, Fu Xi and Nuwa did not have any relation.