The Sultan of Brunei can be thought of as synonymous with the ruling House of Bolkiah, with generations being traced from the 1st sultan, temporarily interrupted by the 14th sultan Abdul Hakkul Mubin who in turn was deposed by a member of the House of Bolkiah. It is not clear when the house became known as the 'House of Bolkiah', and whether it was named after the current sultan Hassanal Bolkiah, or the 6th sultan Bolkiah.. The Sultan's full title is: His Majesty The Sultan and Yang Di-Pertuan of Brunei Darussalam.[1]