He turned Buckingham into his own personal pleasure palace.

Disgraced former Duke of York Prince Andrew brought prostitutes into the royal home of Britain’s monarch, his mum, according to a new bombshell report.

And Queen Elizabeth knew about the trysts, but kept them hush-hush, historian Andrew Lownie, author of “Entitled: The Rise and Fall of the House of York,” told NewsNation’s Paula Froelich.

“He brought in prostitutes to Buckingham Palace for years. It was done on a regular basis. People who worked there complained to people in command, but nothing was done — the security that complained were told, ‘If you would like to go back on the beat Brixton, you have that choice, but otherwise you keep quiet,’” Lownie told Froelich.

”Of course the Queen knew. She was informed. But he was her favorite son, and he got away with everything. They brushed it under the rug. Until now.”

Former palace employees are now spilling the tea about Randy Andy — divorced by Sarah Ferguson in 1996 — behind closed doors, Lownie claimed.

“I am getting more and more information every day from people who worked at the Palace and in the government — they are no longer scared to talk or come out and tell the world what really happened now that Andrew has been removed from power . . . and now that he is no longer protected by the Queen,” he said.

Lownie recently dished to Daily Mail correspondent Sarah Vine on the “Deep Dive” podcast that Queen Elizabeth II and Prince Philip’s third child, now known as Andrew Mountbatten-Windsor, once had a staggering “40 prostitutes” delivered to his Thailand hotel.

On Nov. 3, the 65-year-old was stripped of his “His Royal Highness” and “Prince” titles and honors by his older brother King Charles amidst allegations that he slept with women in Jeffrey Epstein’s trafficked harem.

One of Epstein’s victims, Virginia Giuffre, who died by suicide at 41 in April, claimed in her memoir “Nobody’s Girl” — published six months after her death — that Epstein ordered her to have sex with Andrew on three occasions, including when she was just 17.

On Oct. 17, less than a week before Giuffre’s book came out, Andrew announced he was giving up his titles in this statement: “In discussion with The King, and my immediate and wider family, we have concluded the continued accusations about me distract from the work of His Majesty and the Royal Family. I have decided, as I always have, to put my duty to my family and country first.”

The Post reached out to Buckingham Palace for comment.