Seems there are a lot of leads to go on for someone who wanted to dig around in Chinese archives: "He died from natural causes on 6 May 1933 in Kai Xian, Sichu

Seems there are a lot of leads to go on for someone who wanted to dig around in Chinese archives: "He died from natural causes on 6 May 1933 in Kai Xian, Sichuan, Republic of China and was survived by his 24th wife, a woman of 60 years.[8][7] Li supposedly produced over 200 descendants during his life span, surviving 23 wives.[9][8] Other sources credit him with 180 descendants, over 11 generations, living at the time of his death and 14 marriages"