Margaret Thatcher's daughter Carol yesterday said she was expecting a "tough and tearful week" ahead of her mother's funeral on Wednesday.
"I would just like to say that I feel like anyone else who has just lost a second parent," Carol Thatcher said outside her mother's former home in London. "It's a deeply sad and rather thought-provoking landmark in life."
Britain's only female prime minister, who was in power from 1979 to 1990, died of a stroke on Monday. She was 87.
Carol Thatcher, a 59-year-old journalist, said the "magnificent" tributes to her mother from world leaders were evidence of the mark she had made on the world as Britain's longest-ruling 20th century premier.
"My mother once said to me, 'Carol, I think my place in history is assured.' The magnificent tributes this week - from the wonderful words of President Obama to others from colleagues who once worked alongside her - have proved her right," she said.
"An enormous personal thank you to those who have sent me messages of sympathy and support - these have given me strength. But I know that this is going to be a tough and tearful week, even for the daughter of the 'Iron Lady'."
Dressed in black, Carol posed with twin brother Mark for photos outside her mother's home in Belgravia. But the "Iron Lady" has proved as divisive in death as she was in life, with London police bracing yesterday for a mass "Thatcher's Dead" party.
About 1,500 of her critics - who say she ruined millions of lives with her free-market reforms - planned to attend the party in Trafalgar Square, according to the event's Facebook page.
Representatives of the coal miners who battled Thatcher in a year-long strike in 1984-85, before accepting sweeping pit closures, were planning to attend, The Guardian reported.