Sultan Ahmad ascended the throne in 1402, before that he was known as Pateh Berbai. He was the first Pengiran Bendahara in Brunei. Later he was given the title Pengiran Bendahara Seri Maharaja Permaisuara. He married the younger sister of Ong Sum Ping (also known as Pengiran Maharaja Lela). Sultan Ahmad died in 1425, while his son Nakhoda Angging was Brunei Maharaja in the Sulu and thus, was succeeded by his son-in-law, Sultan Seri Ali or Sharif Ali, the great Sufi Berkat.