From this deed is derived the right by which the Dutch East India Company subsequently granted in fee to the native princes, the administration of those provinces which still continued under native government.
On the death of this unfortunate prince, Mangkubúmi caused himself to be formally proclaimed Susúnan Pakubúana Senapáti Matárem, in the presence of a more numerous assemblage of the princes and chiefs than attended the investiture of the new Susúnan raised by the Dutch. He sent ambassadors to the Dutch governor with many assurances of attachment and fidelity, requesting to be acknowledged as sovereign, and soliciting that the body of the deceased might be delivered to him, for the purpose of solemn interment.
The son of the deceased Susúnan, however, was preferred, and at the age of nine years was raised to the throne, under the title of Pakubúana the third.
The enmity of the rebellious chiefs to each other soon vented itself in open hostility, and a pitched battle ensued, in which Mangkubúmi was defeated and driven to the westward. Soon, however, recruiting his forces, he returned, and had two successful engagements with the Dutch, one at Jánar, a village in Báglen, the other at Tídar, a hill in Kedú. In the battle of Jánár the Javan forces allowed the brunt of the action to fall upon the Dutch, who were completely routed: of those who had escaped the sword many were drowned in an adjoining marsh, and the rest were murdered in great numbers by the country people. The affair of Tídar was of less importance. The forces of Mangkubúmi were sometimes reduced to a few hundred, and at other times amounted to as many thousands, the chiefs and people deserting him in his distress, and flocking to him in his prosperity. After three victories obtained over the Dutch, he marched towards the northern coast, fell upon Pakalóng'an, and plundered the place.
Mangkubúmi now carried all before him, and was once at the gates of Sólo, which capital the Javans represent to have been saved from plunder by the superstitious veneration for the gun niái stómi, which the rebels no sooner descried on the alun-alun than they sounded a retreat. The Dutch, in the hope of allaying his displeasure, had given the Susúnan the choice of his officers of state, and prohibited the resident from taking his seat on the throne with him (an indelicate assumption which had previously given the greatest disgust to the Javans); but after nine years of harassing warfare it was still found impracticable to reduce the rebellious chiefs, or to restore the country to order. The Dutch, therefore, availing himself of the abdication in their favour executed by the deceased Susúnan, listened to the proposals of Mangkubúmi, who offered peace, on condition that one half of Java should be ceded to him. A meeting took place at Gingánti, a village not far distant from Súra-kérta, at which were present the Susúnan, Mangkubúmi, and the governor of the north-east coast of Java, when a treaty was signed.
One of the conditions of this treaty was, that Mangkubúmi should use his utmost exertions to subdue Páku Nagára. In conformity with this condition he immediately proceeded against him; but Páku Nagára making his appearance with his whole force, obliged him to retreat and conceal himself in a cavern, while his troops, flying in every direction, allowed his camp to be burned. Mangkubúmi, however, soon collected his forces again. The Dutch offered a reward for the head of Páku Nagára, who was obliged to proceed to the eastward, being pursued and his whole force finally overthrown. He still refused to submit, and the celebrity of his name and exploits was sufficient to recruit his ranks.
In the year A.D. 1755, Mangkubúmi was solemnly proclaimed by the Dutch Governor, under the title of Súltan Amangkubuána Sénapáti Ingalága Abdul Ráchman Sahédin Panatagáma Kulifatólah.
The united forces of the Susúnan and Sultan now resumed the attack upon Páku Nagára; several of his chiefs were forced to submit, and he himself, after having prolonged the war for upwards of two years, seeing no favourable chance or hope of ultimate success, at last sent his brother to the Susúnan, requesting that certain districts and the southern mountains might be granted to him for his support, promising on that condition to lead a quiet and peaceable life for the future. In reply to this he was informed, that the partition of the lands had already taken place; that part of these lands might, however, be granted, but that it was first necessary he should make his appearance at court. To this he assented; and it being stipulated that the Susúnan should pay him the compliment of receiving him at the distance of half an hour's walk from Sura-kérta, he came in, and throwing himself at the feet of the Susúnan was kindly raised again, desired to sit on the bench, and assured that he had nothing to apprehend.
Peace was then concluded, on the conditions that Páku Nagára, commonly called Mas Sáyed, should assume the rank and title of Pangéran Adipáti Mangku Nágara, with an assignment of land to the extent of four thousand cháchas, in the districts of Kadwang, Malésa, and the southern mountains.
Thus ended, in the year 1758, a war which had lasted twelve years, in which the finest provinces of the island were laid waste, thousands slain on both sides, and the independence of the empire finally annihilated. The expenses incurred by the Dutch on account of the war, from the year 1746 until the peace, amounted to 4,286,006. 12. 8. florins; but, in the result, they acquired, if not the acknowledged sovereignty of the whole island, at least an effectual control over its future administration.