Omar Ali Saifuddien Mosque is located in Bandar Seri Begawan, the capital of Brunei. It is one of the largest and oldest mosques in the country and is named after Omar Ali Saifuddien III, the 28th Sultan of Brunei and the father of the current monarch Sultan Hassanal Bolkiah. The construction work of the mosque began on 4 February 1954 and inauguration took place on 26 September 1958. The mosque is influenced by Mughal architecture. It was accounted that the design was first conceptualized by Sultan Omar Ali Saifuddien III and then developed by the commissioned architect Rudolfo Nolli, an Italian sculptor and decorative stonework contractor.