Klang War
（重定向自Selangor Civil War）
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![The entrance gate of the old fort of Sultan Mahadi in Klang built in 1866 as a defense against Raja Abdullah . Today only the main gate and the earthen ramparts remain of the fort.](/Images/godic/202502/10/SMS0634_Klang_MPK_Kota_Raja_Mahdi_1293_side_s1645.jpg")
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The Klang War or Selangor Civil War took place in the Malay state of Selangor and was a series of conflicts that lasted from 1867 to 1874. It was initially fought between Raja Abdullah bin Raja Jaafar, the administrator of Klang, and Raja Mahadi bin Raja Sulaiman. It was joined by Tengku Kudin (Tengku Dhiauddin, also spelt Ziauddin), as well as Chinese rival gangs. The war was eventually won by Tengku Kudin and Abdullah's son, Raja Ismail .