Brunei Civil War

During the reign of Sultan Muhammad Ali(1660-1661),there was a misunderstanding between the son-in-law of Sultan Muhammad Ali by the name of Pengiran Muda Bungsu and the son of Pengiran Bendahara Pengiran Abdul Mubin over the results of a cock fight.Pengiran Muda Bungsu lost the game.His defeat was jeered by the son of Pengiran Muda Bendahara Pengiran Abdul Mubin.In his anger,he killed the son of Pengiran Muda Bendahar Pengiran Abdul Mubin.

In act of revenge,Pengiran Bendahara Pengiran Abdul Mubin killed Sultan Muhammad Ali and made himself sultan.He was then known as Sultan Abdul Hakkul Mubin.To avoid anger among the families of the late sultan,Sultan Abdul Mubin appointed Pengiran Muda Bungsu,the son-in-law of Sultan Muhammad Ali who had killed his son,as Bendahara.However ,this appointment did not settle the problem as desired by the Sultan.

The new bendahara planned to avenge the death of Sultan Muhammad Ali thus creating chaos in Brunei.Sultan Abdul Hakkul Mubin moved to Pulau Chermin. As soon as Sultan Abdul Hakkul Mubin moved to Pulau Chermin,Pengiran Bendahara Bungsu declared himself Sultan.He called himself Sultan Muhyddin.Brunei therefore had two sultans.This incident led to outbreak of the civil war in Brunei.

As there were now two sultans in Brunei,the people had to take sides.A civil war started and fighting continued until 1673.Eventually,the Sultan Of Sulu sent his soldiers to support Sultan Muhyiddin.Sultan Abdul Hakkul Mubin was killed.

It is not clear to historions whether Sultan Muhyiddin asked for Sulu's help.However,the Sultan Of Sulu,on his part,claimed that he was asked to help and promised the land of Sabah as a reward.Brunei denied this.From that time onwards,bothe Brunei and Sulu claimed control of the land.

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