Brian Ervine is to resign as leader of the Progressive Unionist Party after failing to win a seat in last month's Northern Ireland Assembly elections.
He was elected leader of the PUP last October and says he will now return to his former job as a teacher.
Mr Ervine's brother, David, was a prominent member of the UVF.
David Ervine was leader of the PUP from 2002 until his death from a heart attack in 2007.
