Prince Philip did not enjoy the company of his ex-daughter-in-law, Sarah Ferguson.

The former Duke of Edinburgh seemingly believe Sarah Ferguson did not know what it meant to be a royal.

During an appearance on the podcast, "The Firm: Blood, Lies, and Royal Succession," royal expert and biographer Jane Dismore shared

"[Philip] didn't like Fergie [Sarah Ferguson]—she knew that she wasn't welcome when Prince Philip was around." Dismore further explained, "She's the one person that Prince Philip would not have anything to do with."

"Ferguson's idea of being royal was best summed up by one of the courtiers who said, 'Vulgar, vulgar, vulgar,'" Dismore explained. "She hadn't an idea of what being royal really meant. It wasn't just the awful lapses of judgment. It was an attitude to royal life."

"[H]e hates Fergie so much he can't stand to be in the same place as her," a source told the Express at the time.