Article in todays Sunday Times. It seems newly published documents show the Irish government had a restrictive policy towards aliens, including Nazis, after WW II.
Oswald Mosley sought to enter Ireland after his release from imprisonment. The Irish govt. could not legally bar him from entry but it was made clear he would not be welcomed. However he did live in Ireland for a time in the 50s.
The former dissident Nazi, Otto Strasser appealed to De Valera in 1946 to gain entry to Ireland but was refused. Likewise also the Belgian SS leader Leon Degrelle. The government also tried to discourage Breton separatists from entering Ireland
The restrictive policy also applied to allied leaders, however. After the war Montgomery sought a meeting with the leader of the Irish army. However this was refused because it would have given rise to suspicions about a secret defence pact with the British.
I don't have a Sunday Times subscription so no link. This seems to explode the often argued contention that the Irish goverrnment offered a welcoming home for ex Nazis after the war.