Lisburn is a city in Northern Ireland. It is southwest of Belfast, on the River Lagan, which forms the boundary between County Antrim and County Down. Lisburn forms part of the Belfast Metropolitan Area. It had a population of 71,465 people in the 2011 Census.Formerly a borough, Lisburn was granted city status in 2002 as part of Queen Elizabeth II's Golden Jubilee celebrations. It is the third-largest city in Northern Ireland.NameThe town was originally known as Lisnagarvy (also spelt Lisnagarvey, Lisnegarvey, Lisnegarvy, Lisnegarvagh or Lisnagarvagh) after the townland in which it formed. This is derived.The origin of the town's current name is uncertain. The modern spelling Lisburn first appears in a January 1662 entry in the church records. After February 1662, the name Lisnagarvy is no longer found in the records. It is commonly believed that the town was renamed after being burnt during the Irish Rebellion of 1641. In his book Lisburn Cathedral and Its Past Rectors (1926), Rev W P Carmody argues "This seems to be most improbable; after twenty years the burning would be a memory, and the loyal people of the town would not be disposed to give it a name that would be forever reminiscent of its destruction by rebels". There is evidence that the name existed even at the time of the rebellion. In the depositions concerning the rebellion, an English soldier stated on 9 June 1653 that the rebels entered the town of Lisnagarvy at "a place called Louzy Barne". Carmody believes that, in the town's early days, there were two co-existing ringforts: Lisnagarvy to the north and Lisburn to the south. He suggests that both names come from Irish and concludes: "Lisburn, being shorter and more easily pronounced by the English settlers, became the familiar name and Lisnagarvey gradually dropped out".