title: Dachanghe
text: # Dachanghe
  
  Dachanghe (Chinese: 大長和; lit. 'Great Long Harmony'), possibly Da Changhe or Changhe, was a monarchy from 902 to 928 in modern Yunnan, China. Founded by Zheng Maisi (鄭買嗣), it was the successor state of Nanzhao (738–902), whose ruling Meng (蒙) family was mass-murdered in a bloody coup by Zheng. The Zheng family suffered a similar fate 26 years later at the hands of Yang Ganzhen (楊干貞), who helped found a state named Datianxing (大天興) (928–929).
  
  Dachanghe bordered Former Shu to its north.
  
  ## Rulers
  
  * Zheng Maisi (鄭買嗣) 903-909
  * Zheng Renmin (鄭仁旻) 910-926
  * Zheng Longdan (鄭隆亶) 926-927
  