The Mataram–Blambangan wars occurred intermittently from 1639 to 1659, between the Mataram Sultanate and the Blambangan Kingdom in East Java.
History Sultan Agung sought to expand Mataram's territory, leading to a conflict with the Hindu kingdom of Blambangan, which had ties to the Balinese kingdom of Gelgel. Though Mataram had some success, the Blambagans regained independence by 1659 after Mataram's forces withdrew. This war was part of the broader power struggles over Java between Islamic and Hindu states.
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