The former UDA commander, and leader of the Ulster Workers Strike in the 1970s, Glenn Barr, has died at Altnagelvin Hospital. He was 75.
The Sinn Fein MP, Elisha McCallion paid tribute to Mr Barr, who she said had been on a 'journey towards reconciliation'.
"I am saddened to hear of the death of Glenn Barr. He was on an important journey towards reconciliation, a journey we all should be on," she said.
"My thoughts and prayers are with his family."
Meanwhile, the DUP MP for East Derry, Gregory Campbell, told the BBC that he hoped Mr Barr would be remembered for his cross-community reconciliation work in later life, when he partnered on projects with the former Irish government minister Paddy Harte, and with Paddy Doherty of the Inner City Trust.
If you have a story or want to send a photo or video to us please contact the Derry Now editorial team on 028 7129 6600 for Derry City stories Or 028 7774 3970 for County Derry stories. Or you can email [email protected] or [email protected] at any time.