..in conjunction with the Celebration of the Celebration of His Majesty 's Birthday Celebration His Majesty Sultan Haji Hassanal Bolkiah Mu'izzaddin Waddaulah Ibn al - Marhum bin Hj. Omar Ali Saifussien Sa'Adul Kahairi Waddien, Sultan Yang Di-Pertuan Negara Brunei Darussalam the 73rd, 2019
