Complex sentence: In 1704, the Dutch signed a treaty that recognized the sovereignty of Prince Puger, the third sunan of the Surakarta Sunanate who was in dispute with Amangkurat III on the succession of the Mataram Sultanate, in Plered.
Split into simpler sentences: In 1704, the Dutch signed a treaty that recognized the sovereignty of Prince Puger, the third sunan of the Surakarta Sunanate. He was disputing with Amangkurat III over the succession of the Mataram Sultanate, in Plered.