Former British Prime Minister, Baroness Margaret Thatcher died this morning at the age of 87 after suffering a massive stroke. Mrs Thatcher was UK's first female Prime Minister, serving from 1979 to 1990, the longest run by any 20th century prime minister. 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.'. May her soul rest in peace...amen.