When Prince Charles married Prince Diana in 1981, he knew their union lacked love and trust. To please his bride, the Prince of Wales reportedly made several heartbreaking sacrifices.

In the book, “The Firm,” Penny Junor claimed Princess Diana made “inexhaustible” demands that Prince Charles did his best to meet.

“He had cut out of his life, the friends she disliked, or of whom she was suspicious; good, loyal friends, some of them friends since childhood – and, in typical style, he took the easy way out and did it without telling them,” the royal biographer revealed.

“They were left to wonder what had happened when phone calls, letters and invitations to Highgrove and Balmoral simply stopped. He even gave away his faithful old Labrador, Harvey, because Diana thought he was smelly.”

Despite his attempts to make Diana happy, Junor claimed the couple’s marriage still fell apart. “None of this seemed to make any difference; and when she burst into tears or launched into a tantrum, nothing he could say seemed to calm her.”

Royal author, Sally Bedell Smith revealed Prince Charles fulfilled Princess Diana’s demand but began to shut down emotionally.

“As she grew increasingly assertive, she pushed out employees who displeased her. Just three-and-a-half years after their wedding, some 40 of their original staff had left. To avoid further confrontations, Charles let her have her way,” she explained.

“In April 1986, the couple started taking separate holidays. After five mostly unhappy years, Charles had given up.”

Prince Charles carried on an affair with Camilla Parker Bowles for several years before he finalized his divorce with Princess Diana in 1996. The Princess of Wales was killed in a car crash the following year. Her funeral was attended by Charles and their two sons, Prince William, and Prince Harry.

Prince Charles and Princess Diana
Prince Charles and Princess Diana are pictured at an official event during their first royal Australian tour 1983 in Newcastle, Australia. Patrick Riviere/Getty Images