Ed Miliband MP, Leader of the Labour Party, said:
“I send my deep condolences to Lady Thatcher’s family, in particular Mark and Carol Thatcher.
“She will be remembered as a unique figure. She reshaped the politics of a whole generation. She was Britain’s first woman Prime Minister. She moved the centre ground of British politics and was a huge figure on the world stage.
“The Labour Party disagreed with much of what she did and she will always remain a controversial figure. But we can disagree and also greatly respect her political achievements and her personal strength.
“She also defined the politics of the 1980s. David Cameron, Nick Clegg and I all grew up in a politics shaped by Lady Thatcher. We took different paths but with her as the crucial figure of that era.
“She coped with her final, difficult years with dignity and courage. Critics and supporters will remember her in her prime.”