Paregreg war

Date	1404-1406
Location	Majapahit, Java
Result	Western Majapahit victory, the death of Bhre Wirabhumi, the ruler of Eastern Majapahit

Belligerents

Western court

Eastern court

Commanders and leaders

Wikramawardhana

Bhre Wirabhumi

Casualties and losses

Soldiers

Soldiers, Bhre Wirabhumi and his family, including Chinese envoys that visiting eastern court

Paregreg war was the Majapahit civil war that took place in 1404-1406. The war was fought as the contest of succession between Western court led by Wikramawardhana, against Eastern court led by Bhre Wirabhumi. This war of rivalry and succession had caused the calamity, crisis, court's preoccupation, the drain of financial resources, and exhaustion, that is thought to be one of the causes of Majapahit decline in the following years.

The Majapahit kingdom was established in 1293 by Raden Wijaya with the help of cunning and able Arya Wiraraja, the Regent of Madura. As the reward of Wiraraja's help, in 1295, Raden Wijaya agreed to give the eastern portions of East Java, which includes Blambangan areas with Lumajang as its capital. Throughout Raden Wijaya's reign, Arya Wiraraja ruled eastern realm peacefully as Majapahit's vassal, yet enjoyed substantial freedom. In 1316, Jayanagara son and heir of Raden Wijaya, cracked down the Nambi rebellion in Lumajang. Nambi was the successor of Arya Wiraraja. After that battle, the western and eastern realms of East Java were reunited.

According to Pararaton, in 1376 appeared "a new mountain", which hinted the emergence of a new keraton (court, palace or center of power) opposed to the central authority of Majapahit. According to Ming Chinese chronicle, in 1377 there was two independent kingdoms in Java, both of them sent their envoys to Ming's court. The Western Kingdom was led by Wu-lao-po-wu, and the Eastern Kingdom was led by Wu-lao-wang-chieh.

Wu-lao-po-wu is Chinese pronunciation of Bhra Prabu, which refer to Hayam Wuruk (according to Pararaton), while Wu-lao-wang-chieh is refer to Bhre Wengker alias Wijayarajasa, the husband of Rajadewi (Hayam Wuruk's aunt). It seems that Wijayarajasa has ambition to be Majapahit monarch. After the death of Gajah Mada, Tribhuwana Wijayatunggadewi, and Rajadewi, he built a new eastern court in Pamotan, thus in Pararaton, he also mentioned as Bhatara Parameswara ring Pamotan.

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