Expansion under Brunei Sultan Bolkiah

Timeline

1. 1485Brunei · BorneoIn 1485, Bolkiah (later known as 'Nukha al-Kamal', i.e., Bolkiah the Great) inherited the Brunei sultanate, becoming the fifth sultan. His father Sultan Sulayman's reign had left him a solid Islamized foundation and naval strength.
2. 1485–1500Northern Borneo · BorneoBolkiah led the Brunei fleet northward, conquering the coastal states of northern Borneo and extending power to present-day Sabah and Sarawak. Through suzerainty and trade control, Brunei obtained pepper, camphor, and other goods, consolidating its strategic position between the South China Sea and the Sulu Sea.
3. 1490–1520Sulu Archipelago · PhilippinesBolkiah continued expanding eastward, bringing the Sulu Archipelago and parts of the Philippine coast under Brunei's suzerainty. According to Spanish colonial sources, Bolkiah once conquered the Manila area; the Brunei Empire's territory reached its historical peak, becoming an important maritime Islamic power in Southeast Asia by the late 15th century.