How did the Margaret Thatcher, the most successful Prime MInister of the twentieth century end up being booted out of office in tears? The men who saw it unfold - and in her eyes plunged the knife - recalls the events of November 1990.

Margaret Thatcher was a triple election winner, feted abroad, whose premiership ended with her sobbing through her resignation statement. Ben Monro-Davies talks to the men and one woman in room where it happenned

A series of conversations with the men ( and one other woman ) in the room when Margaret Thatcher resigned

A series of conversations with those in the cabinet room when Margaret Thatcher resigned

A series of conversations with everyone in the cabinet room when Margaret Thatcher tearfully resigned in November 1990

William Waldegrave was the last man promoted to the cabinet by Margaret Thatcher. Within weeks he was one to one with her being asked if she could stay on as Prime Minister.

A series of conversations with all the ministers and officials in the cabinet room in November 1990 when a tearful Margaret Thatcher announced she was resigning.

Tom King was Margaret Thatcher's defence secretary. In November 1990 he was running the biggest deployment of UK troops since World War II for Operation Desert Shield against Saddam Hussein. He returned to find his boss on the way out and pleaded with her to pre-announce her departure so a more orderly exit could ensue. James Mackay was a Scottish lawyer who by November 1990 found himself number two in the cabinet, reading a tribute to Margaret Thatcher - and helping her struggle through her resignation statement. Both say it's a meeting they will never forget.

Margaret Thatcher was the longest serving Prime Minister of the twentieth century. She never lost an election. She even won the leadership election that precipitated her fall. But she was still booted out of Downing St? The member of the cabinet tell me why perhaps Britain's most successful Prime Minister met such an end.

A series of interviews with all those in the cabinet room when Margaret thatcher resigned