In one recording, Diana noted that she and Prince Charles were "closer than they'd ever been" in the six weeks leading up to Prince Harry's birth. When Princess Diana and Prince Charles (now King Charles) were married on July 29, 1981, the world watched a vibrant, happy couple exchange vows and share a kiss on the balcony at Buckingham Palace. In 1991, Diana began recording interviews for royal biographer Andrew Morton, and she revealed just how difficult—and lonely—her marriage to Charles had been. According to The Daily Mail, Diana told Morton that the six weeks leading up to the birth of Prince harry was one of the happiest times in the couple's relationship. Though Diana referred to her second son as "a miracle," the royal couple never regained their happy footing after his birth.