Prince Charles has been accused of lying to Princess Diana about his affair with Camilla Parker Bowles.

But on the online forum site Quora, royal fans claimed that the future king never really denied the truth to the late Princess of Wales. In fact, Quentin Langley, a former student at Cardiff University, said that even Princess Diana declared that she knew about the affair before she married Prince Charles.

“As I recall her account of the matter, she claimed he was completely open about it, saying that she could not expect him to be the first Prince of Wales do not have a mistress. According to his account, he was faithful to her until it became clear that his marriage had irretrievably broken down,” the royal fan said.

Eileen Wood, a real estate assistant, said that it’s possible Prince Charles lied to Princess Diana more than once. But at least the future king was faithful to his mistress.

Hninzi Thet, a former follower of the British royals, wondered why people never asked how many times Princess Diana lied to Prince Charles, the press and her staff.

“Did Diana ever love Charles? Charles’ friends didn’t think so… They thought she was more in love with the thought of being Queen… How many married couples married the second or third or fourth choice? If you really looked, you would find most people don’t marry their first love,” he said.

George Rix, an artist at Seawitch, said that there is really no way to know how many times Prince Charles lied to Princess Diana or if he really came clean about his affair before they tied the knot.

He also said that it is highly unlikely for Prince Charles to even know the answer because he probably didn’t keep track of everything.

Prince Charles and Princess Diana were married for 15 years before they divorced in 1996.

Prince Charles and Princess Diana
Prince Charles and Princess Diana are pictured attending a centenary service for the Royal College Of Music on Feb. 28, 1982 at Westminster Abbey, London. Fox Photos/Hulton Archive/Getty Images