Original: The Second Dáil comprised members returned in the 1921 elections for the Parliaments of Northern Ireland and Southern Ireland ; the Third Dáil was elected in 1922 general election as the '' provisional parliament '' of '' Southern Ireland '' , as provided for by the Anglo-Irish Treaty .
Simplified: The Second Dáil 's members were elected in the 1921 elections for the Parliaments of Northern Ireland and Southern Ireland ; the Third Dáil was elected in 1922 as the provisional parliament of Southern Ireland , as provided for by the Anglo-Irish Treaty .