Prince William will need Princess Eugenie, Beatrice by his side when he becomes King

Prince William will need York sisters Princess Eugenie and Beatrice when he becomes the king in future, it has been disclosed.

The royal expert, while speaking to the Hello, reveals "When William ascends the throne, Beatrice and Eugenie will be valuable assets, and I'm certain they will get involved with royal duties."

"It makes perfect sense, because he will need them," royal expert Ingrid Seward tells Hello!.

She says "I think they would be open to doing more, because they like to give back. They have always been close to William, and the King is very fond of them too.”

Ingrid Seward went on saying "Having slimmed down the monarchy, I don't think [the King] will change his mind, so I think he will leave it to William to bring them into the fold. I think they're being kept on ice."

However, the insider claims Beatrice and Eugenie will not become working royals in the future.

The source close to the royal sisters says Eugenie and Beatrice both believe in the institution and what the Royal Family represents, and “have always been willing to do their bit and support it if they can.”