Gareth Russell, who wrote The Palace: From the Tudors to the Windsors, 500 Years of History at Hampton Court, spoke exclusively to GB News about Prince Andrew wanting his daughters to become working royals.
Prince Andrew is Princess Beatrice and Princess Eugenie's fatherPA
He said: "It is well known that Prince Andrew was keen on his daughters becoming Their Royal Highnesses and having the titles of princess.
"But whether or not he's had any role in them being working royals, I'm not sure.
"Public opinion poll after public opinion poll has shown that there is no public appetite whatsoever for the Duke of York to return to life as a working royal.
"Most people on average, 80 to 83 percent of people polled, said they did not want to see Prince Andrew return to life as a working royal.
Princess Eugenie and Princess Beatrice at Platinum JubileePA
"So, if Prince Andrew was associated with this in any way it probably would be to the detriment of his daughters becoming working royals.
"But certainly for the rest of their life, he has been someone who's been very keen for them to take on a public role."
Unlike Beatrice and Eugenie's younger cousins, Lady Louise Windsor and James, Earl of Wessex, the York sisters do have princess titles.
This was something the Duke of York was adamant about wanting when they were born in 1988 and 1990 respectively.
Princess Beatrice and Princess Eugenie at the Platinum JubileePA