Camilla Parker Bowles reportedly felt terrified during her first tour to the United States with Prince Charles. At that time, the Duke and Duchess of Cornwall have just gotten married.

In the biography “The Duchess: The Untold Story,” royal author Penny Junor said that Camilla feared the reception she would get in the country because the United States was Princess Diana’s “heartland.” The late Princess of Wales was just 23 years old when she first set foot in the country with Prince Charles.

“Diana had wowed the country,” she said. “Most memorable were the 15 minutes she spent on the dance floor with John Travolta at the White House. Diana had been 23, athletic, wraith-like and coy; Camilla was 58 and none of those things,” Junor added.

According to the author, when Prince Charles and Camilla arrived in the country, they were welcomed by a massive group of people. But one of them held up a banner with the words “Camilla, you are not Diana” on it.

During Prince Charles and Camilla’s meeting with Donald Trump and Melania Trump, a headline on the New York Post read, “Queen Camilla is New York’s Frump Tower.” A member of the royal couple’s team said that the particular trip was a tough one for Prince Charles and Camilla.

“There were a lot of nerves around because it was her first overseas trip but it was a triumph,” the royal aide said. “‘Frump Tower’ was really rude and unpleasant but they would have written some of that stuff anyway because she was not Diana and certain sections of the media couldn’t understand how a wealthy royal would swap a beautiful blonde for someone less beautiful,” the royal aide added.

But the minute American reporters started seeing Camilla in action and heard some of the things she had to say, they started writing positive things about her. By the end of the 8-day tour, the trip was dubbed as nothing short of triumphant.

Prince Charles and Camilla had an affair while Princess Diana was still alive. Eight years after the Princess of Wales’ death, Prince Charles and Camille tied the knot in a civil ceremony.

Prince Charles and Camilla Prince Charles, Prince of Wales, and Camilla, Duchess of Cornwall, attend the opening of a new terminal at the Owen Roberts International Airport on March 27, 2019, in George Town, Cayman Islands. Phil Noble - Pool/Getty Images