Tánaiste Micheál Martin has expressed "great sadness" at the death of former Fianna Fáil TD Ben Briscoe.
He said Mr Briscoe served as a Fianna Fáil TD for 37 years from 1965 to 2002 and "is remembered fondly by all who served with him".
Mr Martin said that Mr Briscoe was "popular across all parties because of his good humour and decency".
He said that Mr Briscoe's "proudest achievement" was the year he spent as Lord Mayor of Dublin in 1988-89.
The Tánaiste added: "Ben was the son of Bob Briscoe who was an important figure in Ireland's revolutionary struggle, a founder of Fianna Fáil, a member of Dáil Éireann for 34 years and one of the most famous ever holders of the office of Lord Mayor of Dublin.
"Bob was also a powerful advocate for the German Jewish communities and a voice against Hitler and all he stood for."