London ( CNN ) -- Former British Prime Minister Margaret Thatcher , who died Monday at the age of 87 , helped to shape the course of 20th century history -- but not everyone believes the Iron Lady changed things for the better . Britain 's former Prime Minister Margaret Thatcher died in London Monday at the age of 87 . The cause was pancreatic cancer, her family said on its website.
Britain 's former Prime Minister Margaret Thatcher died in London Monday at the age of 87 . The cause was pancreatic cancer, her family said on its website.