Omar Ali Saifuddien Sa'adul Khairi Waddien (23 September 1914 – 7 September 1986) was the 28th Sultan of Brunei, reigning from 4 June 1950 until his abdication from the throne on 5 October 1967. He was also Brunei's first Minister of Defence after the country's independence. He was known as "The Architect of Modern Brunei", "The Royal Poet", and "The Father of Independence". During his reign, 3 chief ministers were appointed according to the Constitution. They were Ibrahim Mohammed Jaafar, Marsal Maun, and Yura Halim. Pengiran Muda Omar Ali Saifuddien was born at Istana Kota, Kampong Sultan Lama, Brunei Town on 23 September 1914. He was the second son of Muhammad Jamalul Alam II and Raja Isteri Fatimah. Omar Ali Saifuddien, under the behest of his British mentor and father-figure Sir Roland Evelyn Turnbull, studied at the Malay College Kuala Kangsar (MCKK) in Perak, British Malaya from 1932 to 1936. As a result, he was the first of the Brunei sultans to receive formal education in a foreign institution. After completing education in Malaya, he returned to Brunei in 1936 to work in the Forestry Department, as a Cadet Officer. In 1937, he was transferred to the Judiciary Department, also became an administrative officer in 1938. During the Japanese occupation of Brunei from 1941 until 1945, Omar Ali Saifuddien worked under State Secretary Ibrahim Mohammad Jahfar. After the Second World War, in 1947, he was subsequently appointed a member of Brunei State Council and chairman of the Syariah Court. He had the title Pengiran Bendahara Seri Maharaja Permaisuara conferred on him by his brother, Ahmad Tajuddin on 15 July 1947. Upon the sudden death of his brother in Singapore, who left no male heirs, on 4 June 1950, he was proclaimed the next Sultan on 6 June 1950. Omar Ali Saifuddien was crowned as the Sultan Dan Yang Di-Pertuan in the Old Lapau on 31 May 1951. In conjunction of the coronation, he was conferred with the Honorary Companion of the Most Distinguished Order of Saint Michael and Saint George (CMG) by Queen Elizabeth II.