A book of condolences is to be opened in Derry today for the widow of former SDLP leader John Hume.
83-year-old Pat Hume died yesterday - just over a year after her husband passed away.
Former US secretary of state, Hilary Clinton, says she was a key part of the North's peace process.
Bishop of Derry, Donal McKeown, has also been paying tribute to her:
"In many ways what we're seeing today is the end of a wonderful couple. Because it was as a couple, that, somehow, rather they were more than the sum of their individual parts. They weren't just two people walking in parallel."
