Video: Margaret Thatcher death: Mark Thatcher pays tribute to his mother Sir Mark said his mother had been blessed with "a long life, and a very full one," but her death was "without doubt a very sad moment." "We have quite simply been overwhelmed by messages of support, condolence, of every type, from far and wide, and I know that my mother would be pleased they have come from people of all walks of life," he said. He said the support his family had received from the public would be "a source of encouragement and strength" in the days ahead. Sir Mark's tribute came as Downing Street revealed details of Baroness Thatcher's ceremonial funeral, which will involve more than 700 Armed Forces personnel, and feature the units involved in the Falklands conflict.