Former British Prime Minister - Margaret Thatcher has died following a stroke, aged 87.
Her spokesman, Lord Bell, said: "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 - the office of Britain's Prime Minister, 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."
Buckingham Palace said the Queen was sad to hear the news and that she would be sending a private message of sympathy to the family.
The first woman elected to lead a major Western state, Lady Thatcher, as she became after the longest premiership since 1827, served 11 unbroken years at No 10. She was only overthrown by an internal Tory party coup in 1990 after her reckless promotion of the poll tax led to rioting in Trafalgar Square.
In retirement she wrote highly successful memoirs in two volumes and campaigned energetically on behalf of the Thatcher Foundation, which sought to promote her values – free markets and Anglo-Saxon liberties – around the world. Speaking engagements made her moderately wealthy and she made her final home in London's Belgravia.