The Union flag flies at half mast at the Houses of Parliament in London, Monday, April 8, 2013, in honour of former British Prime Minister Margaret Thatcher. Thatcher's spokesman, Tim Bell, said the former prime minister died Monday morning of a stroke. Flags were flown at half-staff at Buckingham Palace, Parliament and Downing Street for the 87 year old. Queen Elizabeth II authorized Thatcher to have a ceremonial funeral ? a step short of a state funeral ? to be held at St. Paul's Cathedral in London with military honors. (AP Photo/Sang Tan)