the new dominion of the Irish Free State and the future Northern Ireland, if it chose to opt out, was to be decided by the Irish Boundary Commission. This did not announce its findings until 1925, when the line was again drawn around six of Ulster's nine counties, with no change from the partition of 1920. Electorally, voting in the six Northern Ireland counties of Ulster tends to follow religious or sectarian lines; noticeable religious demarcation does not exist in the South Ulster counties of Cavan and Monaghan in the Republic of Ireland. County Donegal is largely a Roman Catholic county, but with a large Protestant minority. Generally, Protestants in Donegal vote for the political party Fine Gael ("Family of the Irish"). However, religious sectarianism in politics has largely disappeared from the rest of the Republic of Ireland. This was illustrated when Erskine H. Childers, a Church of Ireland member and Teachta Dála (TD, a member of the lower house of the National Parliament) who had represented Monaghan, won election as President after having served as a long-term minister under Fianna Fáil Taoisigh Éamon de Valera, Seán Lemass and Jack Lynch. The Orange Order freely organises in counties Donegal, Cavan and Monaghan, with several Orange parades taking place throughout County Donegal each year. The only major Orange Order march in the Republic of Ireland takes place every July in the village of Rossnowlagh, near Ballyshannon, in the south of County Donegal. , Northern Ireland has seven Roman Catholic members of parliament, all members of Sinn Féin (of a total of 18 from the whole of Northern Ireland) in the British House of Commons at Westminster; and the other three counties have one Protestant T.D. of the ten it has elected to Dáil Éireann, the Lower House of the Oireachtas, the parliament of the Republic of Ireland. At present (August 2007) County Donegal sends six T.D.'s to Dáil Éireann. The county is divided into two constituencies: Donegal North-East and Donegal South-West, each with three T.D.'s. County Cavan and County Monaghan form the one constituency called Cavan-Monaghan, which sends five T.D.'s to the Dáil (one of whom is a Protestant). The historic Flag of Ulster served as the basis for the Ulster Banner (often referred to as the Flag of Northern Ireland), which was the flag of the Government of Northern Ireland until the proroguing of the Stormont parliament in 1973. People