 Sultan Bolkiah's victory over Seludong (modern-day Manila) by defeating Rajah Suko of Tundun in Luzon and as well as his marriage to Laila Menchanai, the daughter of Sulu Sultan Amir Ul-Ombra, widened Brunei's influence in the Philippines.This increased Brunei's wealth as well as extending Islamic teachings in the region, resulting in the influence and power of Brunei reaching its peak during this period.Bolkiah's rule reached essentially all of coastal Borneo, as far south as Banjarmasin, and as far north as the island of Luzon, including Seludong (present-day Manila) in the Philippines.