Located away from the banks of Brunei River, behind the Freshco Shopping Centre at Mile One, Jalan Tutong, the Royal Mausoleum and the graveyard have been used by succeeding generations of sultans. Inside the Mausoleum itself are the remains of the last ten sultans, Sultan Omar Ali Saifuddin (1950–1967), who died in 1986, Sultan Ahmad Tajuddin (1924–1950), Sultan Muhammad Jamalul Alam II (1906–1924), Sultan Hashim (1885–1906), Sultan Abdul Momin (1852–1885), Sultan Omar Ali Saifuddin II (1828–1852), Sultan Muhammad Kanzul Alam (1807–1826), Sultan Muhammad Jamalul Alam I who ruled less than a year in 1804, Sultan Muhammad Tajuddin (1778-1804,1804-1807), and Sultan Omar Ali Saifuddin I (1740–1778). Other members of the royal families from those times are also buried there.