, the most dominant British prime minister since Winston Churchill in 1940 and a global champion of the late 20th-century free market economic revival, has died.
Her spokesman, Lord Bell, said on Monday: "It is with great sadness that Mark and Carol Thatcher announced that their mother Baroness Thatcher died peacefully following a stroke this morning. A further statement will be made later."
Downing Street announced that she would receive a ceremonial funeral with military honours at St Paul's Cathedral.
David Cameron, who is cutting short his trip to Europe to return to London following the news, said: "It was with great sadness that l learned of Lady Thatcher's death. We've lost a great leader, a great prime minister and a great Briton."