South Armagh (UK Parliament constituency)

South Armagh
Former County constituency for the House of Commons
1885–1922
Number of members	One
Replaced by	Armagh
Created from	Armagh

South Armagh was a UK Parliament constituency in Ireland which returned one Member of Parliament from 1885 to 1922, using the first past the post electoral system.

This constituency comprised the southern part of County Armagh.

From 1885 to 1918 the constituency was bounded to the north and north-west by Mid Armagh, to the south-west by South Monaghan, to the south by North Louth, to the south-east by the Borough of Newry and to the east by South Down. Between 1918 and 1922 the neighbouring seats were the same except that Louth was an undivided county constituency and Newry had been absorbed into South Down.

Prior to the United Kingdom general election, 1885 and from the dissolution of Parliament in 1922 the area was part of the Armagh constituency.

The constituency was a predominantly Nationalist area. In 1918 the Nationalists heavily defeated Sinn Féin.

Sinn Féin contested the general election of 1918 on the platform that instead of taking up any seats they won in the United Kingdom Parliament, they would establish a revolutionary assembly in Dublin. In republican theory every MP elected in Ireland was a potential Deputy to this assembly. In practice only the Sinn Féin members accepted the offer.

The revolutionary First Dáil assembled on 21 January 1919 and last met on 10 May 1921. The First Dáil, according to a resolution passed on 10 May 1921, was formally dissolved on the assembling of the Second Dáil. This took place on 16 August 1921.

In 1921 Sinn Féin decided to use the UK authorised elections for the Northern Ireland House of Commons and the House of Commons of Southern Ireland as a poll for the Irish Republic's Second Dáil. This constituency, in republican theory, was incorporated in a four-member Dáil constituency of Armagh.

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