Li Ching-Yuen was supposedly born in 1677 in Qi Jiang Xian, Szechuan province and is alleged to have spent most of his life in the hills gathering herbs and knowledge of longevity methods. In 1749, when he was 71 years old, he moved to Kai Xian to join the Chinese army as a teacher of the martial arts and as a tactical advisor.
In 1927, Li Ching Yuen was invited by General Yang Sen to visit him in Wan Xian, Szechuan. The general was fascinated by his youthfulness, strength and prowess in spite of his advanced age. His famous portrait was photographed there. Returning home, he died a year later, some say of natural causes; others claim that he told friends that “I have done all I have to do in this world. I will now go home.”
After Li’s death, General Yang Sen investigated the truth about his claimed background and age. He wrote a report that was later published. In 1933, people interviewed from his home province remembered seeing him when they were children, and that he hadn’t aged much during their lifetime. Others reported that he had been friends with their grandfathers. – wiki
In the province of Szechwan in China lived until last week Li Ching-yun. In China where Age means something he was a great man. By his own story he was born in 1736, had lived 197 years. By the time he was ten years old he had traveled in Kansu, Shansi, Tibet, Annam, Siam and Manchuria gathering herbs. He continued to gather herbs for the rest of his first 100 years. He lived on herbs and plenty of rice wine. When asked for his secret of long life. Li Ching-yun gave it readily: “Keep a quiet heart, sit like a tortoise, walk sprightly like a pigeon and sleep like a dog.” The “Scholar War Lord” Wu Pei-fu. not satisfied with this formula, took Li into his home and was lectured on “how to get the most out of each century” by maintaining “inward calm.” Some said he had buried 23 wives, was living with his 24th. a woman of 60, had descendants of eleven generations. The fingernails of his venerable right hand were six inches long. Yet to skeptical Western eyes he looked much like any Chinese 60-year-old. In 1930 Professor Wu Chung-chieh, dean of the department of education at Chengtu University, found records that the Imperial Chinese Government had congratulated one Li Ching-yun in 1827 on his birthday. The birthday was his 150th, making the man who died last week—if it was the same Li Ching-yun, and respectful Chinese preferred to think so—a 256-year-old.