Doug Beattie, the UUP leader, paid tribute to Lord Trimble saying his death would cause “deep sadness” throughout Northern Ireland and much further afield.
“David Trimble was a man of courage and vision. He chose to grasp the opportunity for peace when it presented itself and sought to end the decades of violence that blighted his beloved Northern Ireland,” he said.
“He will forever be associated with the leadership he demonstrated in the negotiations that led up to the 1998 Belfast Agreement.
“The bravery and courage he demonstrated whilst battling his recent illness was typical of the qualities he showed in his political career, at Stormont and at Westminster.
“He will be remembered as a First Minister, as a peer of the realm and as a Nobel Prize winner. He will also be remembered as a great Unionist.
“On behalf of the Ulster Unionist Party, and with a very heavy heart, I would like to extend my deepest sympathies to his wife Lady Trimble and his children, Richard, Victoria, Sarah and Nicholas.”