Thatcher's former cabinet minister Norman Tebbit paid an emotional tribute to his old boss and friend in the House of Commons today.
He spoke movingly of the support she provided his family after he and his wife were injured in an IRA bomb attack at the Grand Hotel in Brighton. He praised her courage and popularity, and reflected on her demise, saying:
"I left her, I fear at the mercy of her friends, that I do regret."
Labour leader Ed Miliband praised Baroness Thatcher for "breaking the mould".
“At each stage of her life she broke the mould - a woman at Oxford, when there was no a single woman in the university who held a full professorship.
"A woman chemist when most people assumed scientists had to be men, a woman candidate for Parliament in 1950 against the opposition of some in her party in Dartford at the age of only 24, a woman MP in 1959 when just 4% of MPs in the whole of this House were women."
MPs and peers will today pay their respects to Baroness Thatcher after Parliament was recalled from its Easter recess so tributes could be paid to the former prime minister.
They will debate a single line motion which reads: "That this House has considered the matter of tributes to the Rt Hon Baroness Thatcher of Kesteven LG OM."
The Prime Minister will lead the debate on the death of Lady Thatcher, Ed Miliband will follow, before Speaker John Bercow then calls MPs to contribute.
The order paper for proceedings indicate the debate may continue until 10pm, at which point Leader of the House Andrew Lansley will adjourn the Commons until its planned return from the Easter recess on Monday.