in a charity event at Goldsmiths' Hall. She attended the Trooping the Colour for the first time in June 1981, making her appearance on the balcony of Buckingham Palace afterwards. In October 1981, Charles and Diana visited Wales. Diana attended the State Opening of Parliament for the first time on 4 November 1981. Her first solo engagement was a visit to Regent Street on 18 November 1981 to switch on the Christmas lights. Diana made her inaugural overseas tour in September 1982, to attend the state funeral of Grace, Princess of Monaco. Also in 1982, Diana was created a Grand Cross of the Order of the Crown by Queen Beatrix. In 1983, she accompanied Charles on a tour of Australia and New Zealand with Prince William. The tour was a success and the couple drew immense crowds, though the press focused more on Diana rather than Charles, coining the term 'Dianamania' as a reference to people's obsession with her. While sitting in a car with Charles near the Sydney Opera House, Diana burst into tears for a few minutes, which their office stated was due to jet lag and the heat. In New Zealand, the couple met with representatives of the Māori people. Their visit to Canada in June and July 1983 included a trip to Edmonton to open the 1983 Summer Universiade and a stop in Newfoundland to commemorate the 400th anniversary of that island's acquisition by the Crown. In 1983, she was targeted by the Scottish National Liberation Army who tried to deliver a letter bomb to her. In February 1984, Diana was the patron of London City Ballet when she travelled to Norway on her own to attend a performance organised by the company. In April 1985, Charles and Diana visited Italy, and were later joined by Princes William and Harry. They met with President Alessandro Pertini. Their visit to the Holy See included a private audience with Pope John Paul II. In autumn 1985, they returned to Australia, and their tour was well-received by the public and the media, who referred to Diana as "Di-amond Princess" and the "Jewel in the Crown". In November 1985, the couple visited the United States, meeting President Ronald Reagan and First Lady Nancy Reagan at the White House. Diana had a busy year in 1986 as she and Charles toured Japan, Spain, and Canada. In Canada, they visited Expo 86,