Wu Dalang, a fictional character in Water Margin, has no prototype and is the oldest martial artist. His name is Wu Dalang, and he is from Qinghe County, Hebei Province. My parents died when I was a child, and I tried to raise my brother Song Wu. Sell sesame seed cakes and marry Pan Shi Jinlian.
Shi Naian is a new figure, which comes from the stories of "wandering the Jianghu" and "beating tigers" in Gong Kai's Thirty-six Chapters of Sung River in Yuan Dynasty (according to Zhejiang Tongzhi, he is a tramp who often plays in Yongjinmen without a brother).
Extended data:
My parents died when I was a child, and I brought up my brother Song Wu. He is kind-hearted, practical and hardworking, loves his younger brother and is simple. He has some basic advantages of farmers in China, but his defects are also obvious, and his personality is somewhat weak. He has no special skills, so he can only make a living by selling kitchen cakes honestly. His family is very poor. But with the money from selling sesame cakes, I bought a cabin.
Later, he accidentally married a beautiful wife, Pan Jinlian, but he was killed by an adulterer and an adulterer. After Song Wu came back, he heard that his brother had died, and Wu Dalang raised Song Wu very painfully. Song Wu, who always regarded his eldest brother as his father, was sad and angry, and determined to find out the truth for his eldest brother, but government officials cared about each other and deliberately sheltered Ximen Qing.
Song Wu summoned his neighbors. Pan Jinlian and Wang Po were afraid of Song Wu and confessed one by one. Song Wu put the adulteress Pan Jinlian in front of his brother's spirit and cut off his head. He went to Lion Building to fight Ximen Qing, and finally killed Ximen Qing alive in the lion downstairs, and worshipped Wu Dalang with the heads of Pan Jinlian and Ximen Qing.
References:
Baidu Encyclopedia-Wu Dalang