Amangku Buwono I

Southeast Asian ruler

Also known as: Mangkubumi

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June 18, 2026

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Sultan Amangku Buwono I was a ruler in Java, Indonesia, who established Yogyakarta as his capital in 1755. He was a key figure in the division of the Mataram kingdom following a succession war and conflict with the Dutch East India Company.1

Amangku Buwono I moved his court to Yogyakarta after rebelling against Dutch intervention in Javanese politics. The Gianti Agreement of 1755 formalized the division of Mataram, with Amangku Buwono I ruling the western part and establishing his palace in Yogyakarta. Yogyakarta later became the capital of Indonesia temporarily and is now a special district known for its cultural significance.21

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Gianti Agreement
…Mangkubumi, later known as Sultan Amangku Buwono I, who built his palace in Jogjakarta. Raden Mas Said signed a treaty with the company in 1757, which entitled him to have a part of eastern Mataram. He was thenceforth known as Mangkunegara I.
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…Mangkubumi, later known as Sultan Amangku Buwono I, who built his palace in Jogjakarta. Raden Mas Said signed a treaty with the company in 1757, which entitled him to have a part of eastern Mataram. He was thenceforth known as Mangkunegara I.
Read More