To have been Great Britain’s first female Prime Minister means that Margaret Thatcher’s place in history is secure. She will be remembered as one of the most conviction-driven British Prime Ministers who drew on a scholarship that demanded markets without regulation. The policies of Mrs Thatcher’s Government in regard to Northern Ireland gave rise to considerable debate at the time. However, her key role in signing the Anglo-Irish Agreement will be recalled as a valuable early contribution to the search for peace and political stability. Lady Thatcher’s political career, its impact and legacy will be discussed and debated for many years. What is undeniable is that the strength of conviction in her beliefs was acknowledged by those who robustly opposed her, as well as by those who enthusiastically supported her.