Let me, on behalf of myself and the European Commission, say that I was deeply saddened to hear the news of the death of Baroness Thatcher.
She was without doubt a great stateswoman, the first female Prime Minister of her country, and a circumspect yet engaged player in the European Union.
She will be remembered for both her contributions to and her reserves about our common project.
She signed the Single European Act and helped bring about the Single Market.
– European Commission president Jose Manuel Barroso
She was a leading player in bringing into the European family the Central and Eastern European countries which were formerly behind the Iron Curtain.
As you remember, Britain under Mrs Thatcher's leadership was very supportive of the enlargement of the European Union.
Her legacy has done much to shape the United Kingdom as we know it today, including the special role of the United Kingdom in the European Union that endures to this day.
I would like to convey my deepest regrets to the Government and people of the United Kingdom.