A leading trade unionist who has died was described as a man of great intellect and absolute integrity.
Donal Nevin, who was in his late 80s, died on Sunday morning after a lengthy illness.
He retired as general secretary of the Irish Congress of Trade Unions (ICTU) in 1989.
ICTU general president Jack O'Connor led the tributes.
Mr O'Connor said: "He always called it as he saw it and never shirked the responsibility of delivering the message, however unpopular. Donal's intellectual rigour cut to the core of every issue analysing it from the perspective of its potential impact on working people and the marginalised.
"Even in retirement, and despite failing health, he applied himself relentlessly and assiduously to the task of re-producing the collected works of James Connolly and setting the record straight on the contribution of his great hero, Jim Larkin, among other projects."
Mr O'Connor described his death as a major loss for the trade union and labour movement.
Congress General Secretary David Begg also expressed condolences.
"Donal Nevin was a remarkable individual who was possessed of a sharp and rigorous intellect and a keen strategic vision. He is someone to whom the modern trade union movement is deeply indebted. He was a man of great honour and his loss will be deeply felt by all."
Earlier this year the Congress established the Nevin Economic Research Institute, a progressive economic think tank named in honour of the former ICTU General Secretary.