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."
More top news
Tyson Fury is the new heavyweight champion of the world, so who will he face next?
World leaders are gathering in Paris for a UN climate change summit aimed at securing a global deal on limiting greenhouse gas emissions
More than 300,000 people have now signed a petition calling for tougher penalties for those who abuse animals.