“She wanted me to believe she was Jeffrey Epstein’s girlfriend but I knew that she wasn’t,” Oxenberg told Australia’s “60 Minutes” news program.

“She wanted that to be the storyline.”

The interviewer asked, “How did you know that she wasn’t his girlfriend?

“Because she’s not 12,” said Oxenberg, who has previously said she’s a former friend of Epstein and his alleged madam.

Oxenberg — who is the daughter of Princess Elizabeth of Yugoslavia, Prince Charles and Prince Andrew’s second cousin — said the convicted pedophile and Maxwell used each other to boost their own status.

“They were a perfect fit. They needed each other. They were both halves of a whole that they wanted to be,” Oxenberg said in the sit-down interview.

“He had the money. She had the connections.”

But Oxenberg claimed she never was aware of the allegations that Maxwell recruited and groomed young women to be sexually abused by the disgraced financier.

“I didn’t even have the wherewithal to think of such tremendous evil,” she said. “I just thought she had [a] rancid personality.”

Oxenberg also said she didn’t care “at all” for Epstein — writing him off as a “goomba from Queens.”

“He was a typical greedy person who wanted more than they already had,” Oxenberg said.

Maxwell was busted earlier this month on a six-count indictment charging her with grooming young girls for sex.