According to veteran royal biographer Andrew Lownie, the Duke of York, 65, can be "unbelievably cruel" to staffers behind closed doors.

The author alleged, "Andrew and Ghislaine... had been occasional lovers—and through her, the Prince had come into the ambit of... Epstein."

Prince Andrew and Sarah Ferguson were seen for the first time since the bombshell book, "Entitled: The Rise and Fall of the House of York," made headlines.