Majapahit gave its ports autonomy — the ports became its successor

At its peak under Hayam Wuruk and his prime minister Gajah Mada (1350–1389), Majapahit was the last great Hindu-Buddhist empire of maritime Southeast Asia, claiming influence from Sumatra to New Guinea. After Hayam Wuruk's death in 1389, succession wars — particularly the Regreg War of 1405–1406 — drained the centre's resources and loosened its grip on vassals.

By 1430, Muslim Chinese, Arab and Malay trading communities were established in the northern Javanese ports of Semarang, Demak, Tuban and Ampel. King Kertabhumi formalised their position, granting north-coast trade rights centred on Demak. The arrangement boosted royal revenue in the short term. It also gave the ports their own jurisdiction, their own networks, and — through Islam — a source of legitimacy that did not depend on the Hindu-Buddhist court.

The ports noticed before the centre did that the dependency had reversed. Demak's first sultan, Raden Patah, claimed descent from Majapahit's own royal line — legitimacy borrowed from the house he was replacing. Demak seized Majapahit's Sumatran holdings, Jambi and Palembang. The trading class that had enriched the empire was now building a successor state on its coastline.

After 1468, Majapahit fractured in a civil war between Kertabhumi and rival claimants. In 1527, the Demak Sultanate under Adipati Yunus attacked and destroyed what remained. The empire that had ruled the archipelago for two centuries was ended not by a foreign invasion but by its own revenue partners.