Princess Grace's body was taken by a funeral cortege led by her husband, Prince Rainer, and her children, Prince Albert and Princess Caroline though the streets of Monaco-Ville from the palace to the cathedral. Her other daughter, Princess Princess Stéphanie, was unable to attend as she had been a passenger in the car with her mother and was still recovering from her injuries. The homily was delivered by Charles Amarin Brand, the Archbishop of Monaco. Brand said in his homily that people were "united in pain" and emphasised the "senselessness and inexplicable nature" of "the rupture of the destiny of this humanly exceptional, religiously exceptional person". Brand said Grace's Roman Catholic faith "modeled, indeed sculpted, not only the public person, but the deep personality of her being" and that her accident "results in stupefaction, and provides no answers to the questions of life, suffering, separation and death". The gospel reading was "In my Father's house are many mansions...I go to prepare a place for you" from John 14. The music that accompanied the mass included an excerpt from Joseph Haydn's Symphony No. 4, Samuel Barber's Adagio for Strings and four pieces by Johann Sebastian Bach. Grace's coffin was draped in the Monégasque flag and lay in the cathedral's Chapel of the Princes during the ceremony. A second mass was offered after the ceremony for Monégasque citizens. Interment of the coffin in the Grimaldi family vault in the apse of the cathedral was scheduled for the following week as the funeral service overran. Prince Rainier sat between Princess Caroline and Prince Albert at the ceremony. Grace's siblings; her brother John B. 'Kell' Kelly Jr., and her sisters Lizannae and Peggy, sat behind the Monégasque royal family. Four of Grace's bridesmaids were in attendance as were her former agent Jay Kanter and her former co-star Cary Grant. The representatives of several reigning and non-reigning royal families and governments were in attendance at the funeral. Nancy Reagan, the First Lady of the United States was seated between Danielle Mitterrand, the wife of French President François Mitterand, and Diana, Princess of Wales, wife of Prince Charles, the heir to the British throne. The American delegation to the funeral was led by Reagan who was a friend of Princess Grace. The rest of the American delegation comprised the United States Secretary of the Navy John F. Lehman Jr., and Dick Thornburgh, the Governor of Pennsylvania, Evan G. Galbraith, the United States Ambassador to France, the Pennsylvanian Congressman Thomas M. Foglietta and Jacklyn Anne Cahill, the State DepartmentOfficer in charge of French and Monacan Affairs. Diana, Princess of Wales represented the British monarch Queen Elizabeth II at the ceremony. This was the first occasion at which Diana was the sole representative of the British royal family. Diana had previously met Princess Grace at a music recital at Goldsmith's Hall in the City of London. Queen Elizabeth had originally deputized Charles, Prince of Wales to attend but he was reluctant to do so, and Diana was allowed to attend instead. Other notable attendees included singer Eddie Fisher, Barbara Sinatra, the wife of the singer Frank Sinatra, and Jackie Stewart, the racing driver.
