A card to pay tributes is seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A bottle of milk to pay tributes are seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

Floral tributes and a card are seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A bottle of milk to pay tributes is seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A bottle of milk to pay tributes are seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A girl presents floral tributes outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

Floral tributes and a book are seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A girl presents floral tributes outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

Floral tributes and a book are seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A bottle of milk to pay tributes is seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A man lays flowers outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

Floral tributes and a card are seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A bottle of milk to pay tributes are seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

Floral tributes and a book are seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A man lays flowers outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

A card to pay tributes is seen outside the residence of Baroness Thatcher in No.73 Chester Square in London, Britain, on April 8, 2013. Former British Prime Minister Margaret Thatcher died at the age of 87 after suffering a stroke, her spokesman announced Monday. (Xinhua/Wang Lili)

Flowers are laid outside the residence of Baroness Thatcher at the Chester Square in London, Britain, on April 8, 2013. It has been confirmed that Lady Thatcher died this morning following a stroke at the age of 87. (Xinhua/Wang Lili)

A person lays flowers outside the residence of Baroness Thatcher at the Chester Square in London, Britain, on April 8, 2013. It has been confirmed that Lady Thatcher died this morning following a stroke at the age of 87. (Xinhua/Wang Lili)

Flowers are laid outside the residence of Baroness Thatcher at the Chester Square in London, Britain, on April 8, 2013. It has been confirmed that Lady Thatcher died this morning following a stroke at the age of 87. (Xinhua/Wang Lili)

People lay flowers outside the residence of Baroness Thatcher at the Chester Square in London, Britain, on April 8, 2013. It has been confirmed that Lady Thatcher died this morning following a stroke at the age of 87. (Xinhua/Wang Lili)