Baroness Thatcher was Britain's first female Prime Minister, and the longest-serving British Prime Minister of the 20th century.
Richard presents a news special bringing reaction to the news of her death at the age of 87 following a stroke.
With contributions from Prime Ministers past and present Sir John Major & David Cameron, as well as Lady Thatcher's former political colleagues Geoffrey Howe, Michael Howard, Gillian Shephard, Brian Mawhinney, David Mellor & Jeffrey Archer.
Plus reaction from her former advisor & author Michael Dobbs, former Home Office minister Anne Widdecombe, documentary maker Michael Cockerell, Labour's Tony Benn, author & historian Amanda Foreman, & former BBC political editor John Sergeant. Plus voters in Lady Thatcher's former north London constituency of Finchley give their reaction to the news, along with further reaction from Durham & Teeside in the North East.
And a round-up of the reaction from political leaders around the world including an interview with former US Secretary of State Henry Kissinger.