The facade of Nguyen Huu Canh Main Temple at Cu Lao quarter, Bien Hoa city. In 1698, King Nguyen Phuc Chu ordered Nguyen Huu Canh to conquer Dong Nai land. He renamed it as Gia Dinh office and built Tran Bien palace. He divided the office into Phuoc Long and Gia Dinh districts, set up wards, hamlets, communes and human and land divisions and enlisted Ngu Quang migrants to Dong Nai.