At the peak of the Bruneian Empire, Sultan Bolkiah (reigned 1485–1528) is claimed to have had control over most regions of Borneo, including modern-day Sarawak and Sabah, as well as the Sulu Archipelago off the northeast tip of Borneo, and the islands off the northwest tip of Borneo. Claims also state that they had control over Seludong (or the Kingdom of Maynila, where the modern-day Philippine capital Manila now stands) but Southeast Asian scholars believe this refers to a settlement Mount Selurong in Indonesia. The maritime state of Brunei was visited by Spain's Magellan Expedition in 1521 and fought against Spain in the 1578 Castilian War.