Andrew Mountbatten-Windsor reportedly had bold opinions about Queen Camilla.

In royal author Angela Levin‘s new book, Camilla: From Outcast to Queen Consort, she claimed the former Duke of York and King Charles III‘s wife have a frosty relationship.

According to the writer, Andrew thought Camilla was “insufficiently aristocratic and that she was not to be trusted.”

Levin claimed the 66-year-old was “quite poisonous, mean, unhelpful and very nasty about Camilla.”

“He remained so hostile about Camilla’s acceptance that it’s doubtful it has ever been forgiven,” she wrote.

A source told the expert, “His behavior became very, very negative and extremely unpleasant on not getting his way.”

His Majesty and the former Duchess of Cornwall married in 2005 after knowing each other for 55 years.

It wasn’t only Charles’ brother who expressed disdain for Camilla. After it was alleged that the 78-year-old and her now-husband were seeing each other while he was married to Princess Diana, it took time for the public to come to Camilla’s defense.

“It’s not easy,” the mother of two admitted to British Vogue in 2023.

“I was scrutinized for such a long time that you just have to find a way to live with it. Nobody likes to be looked at all the time and, you know, criticized. But I think in the end, I sort of rise above it and get on with it. You’ve got to get on with life,” Camilla said.

Of her marriage to Charles, she noted, “It’s not easy sometimes, but we do always try to have a point in the day when we meet. Sometimes it’s like ships passing in the night, but we always sit down together and have a cup of tea and discuss the day. You know when we go away, the nicest thing is that we actually sit and read our books in different corners of the same room. It’s very relaxing because you know you don’t have to make conversation. You just sit and be together.”

As for Andrew, he was arrested on suspicion of misconduct in public office for allegedly giving information to Jeffrey Epstein while he was the U.K.’s trade envoy.

“I have learned with the deepest concern the news about Andrew Mountbatten-Windsor and suspicion of misconduct in public office,” the leader of England said in a statement via People. “What now follows is the full, fair and proper process by which this issue is investigated in the appropriate manner and by the appropriate authorities. In this, as I have said before, they have our full and wholehearted support and co-operation. Let me state clearly: the law must take its course. As this process continues, it would not be right for me to comment further on this matter. Meanwhile, my family and I will continue in our duty and service to you all.”