Lord Trimble, the former First Minister of Northern Ireland and leader of the Ulster Unionist Party, has died.
Lord Trimble, who was 77, led the UUP between 1995 and 2005 and was instrumental in negotiating the Good Friday Agreement - the peace deal that ended the worst of Northern Ireland's Troubles.
His efforts earned him the Nobel Peace Prize along with SDLP leader John Hume.
Since 2006, he has sat in the House of Lords as Baron Trimble of Lisnagarvey.
He was the first person to serve in the role of First Minister in the new Northern Ireland Executive created as part of the Good Friday Agreement.
A statement from the UUP said: "It is with great sadness that Lord Trimble's family announce that he passed away peacefully earlier today following an illness."
Born in Belfast in 1944, he was educated at Queen's University before becoming a barrister and lecturer. His involvement in politics increased in the 1970s and he became involved in the Vanguard party, an extreme unionist group.
However, a return to the mainstream unionist establishment followed and he rejoined the Ulster Unionist party in 1978, becoming the Westminster MP for Upper Bann in a by-election on 17 May 1990.
The high point of his career was when he won the leadership of the Ulster Unionists in September 1995 following the resignation of the veteran Sir James Molyneaux.
Trimble is survived by his wife, Daphne, and his sons and daughters, Richard, Victoria, Nicholas and Sarah.