The Guildford Four's Paul Hill pleaded with the Dublin government over prison chiefs' refusal to let him see his daughter in private, declassified documents have revealed.
State papers from the Department of Foreign Affairs included a letter the Belfast man wrote from his cell in HMP Wormwood Scrubs in 1987 in which he branded the limited access to his little girl an additional punishment on top of his life sentence.
Mr Hill said he had not had one unmonitored moment with her since her birth.
In documents released by the National Archives under the 30 year rule, he said his daughter was suffering "extreme behavourial difficulties" because of his incarceration.
"Both my daughter's condition and the relationship with my girlfriend and family are obviously going to suffer, in what I can only view as a punishment whilst I have done nothing. For neither my family nor I have ever abused any visit in any way," he said.
"After 13 years in prison for nothing I would assume I don't ask a great deal, for how much is one expected to take."
Along with the letter there was a photo in the file of Mr Hill in his prison cell, with his distinctive long hair and standing with his arms folded, in a pair of flip flops against the door.
Mr Hill said he was seeking support to be removed from Category A and "high risk" status in the jail.
