In 1961 he was bestowed as the "Pengiran Muda Mahkota" ("Crown Prince") and subsequently as the Sultan of Brunei Darussalam on 4 October 1967, after his father had abdicated voluntarily.
He was bestowed as the "Pengiran Muda Mahkota" ("Crown Prince") and subsequently as the Sultan of Brunei Darussalam on 4 October 1967. This was in 1961. His father had abdicated voluntarily.