Orange marches, and Thomas Sloan, founder of the Independent Orange Order. Belfast South contains some of Belfast's most expensive residential districts as well as Queen's University Belfast. The overall tenor of the constituency is middle-class – young, trendy and cosmopolitan towards the city centre, with Northern Ireland's biggest concentrations of both students and ethnic minorities, and further out from the city centre it is settled and prosperous. Despite this, significant pockets of inner-city working class areas such as the Markets and a number of isolated suburban estates exist in the constituency. There has been particularly rapid demographic change in Belfast South since around the year 2000. The 2011 census revealed that Belfast South consists of a slightly larger Catholic population than Protestant and while the constituency traditionally has had a unionist majority, the nationalist vote has now surpassed this in more recent elections. There have also been strong votes for other parties such as the Alliance Party of Northern Ireland, Green Party, the Conservatives and the Northern Ireland Women's Coalition. The constituency has witnessed a steady series of candidates backed by groups who aspire to support the British Labour Party despite its prior ban on membership and organisation in Northern Ireland, though their results have been minimal. Until the 1990s the main focus of attention has been on contests between unionist candidates. In the February 1974 general election the seat was won by Robert Bradford of the Vanguard Unionist Progressive Party on a united anti-Sunningdale Agreement slate with the Ulster Unionist Party and the Democratic Unionist Party. He defeated Rafton Pounder, the sitting Unionist MP who defended his seat as a Pro-Assembly Unionist. Bradford held the seat for the next seven years, though in February 1978 he and the rump of Vanguard reunited with the Ulster Unionists. At the end of 1981 Bradford was assassinated by the IRA in a Belfast community centre while hosting a political surgery. The subsequent by-election garnered much interest as it was expected that the Democratic Unionist Party would take the seat, building on their steady rise which had seen them gain both Belfast North and Belfast East at the previous general election. However, the DUP came third, behind the Alliance Party of Northern Ireland, and the UUP's candidate Martin Smyth won the seat, holding it until 2005. The by-election was extremely significant at the time in that it was the first at which the