With the new coronavirus pandemic, it appears that Prince William is on the brink of facing his biggest test to date as the future King of England.

The 37-year-old prince is likely to step up and take over some of the duties that are usually undertaken by the Queen in the coming months as her and Prince Charles go underground.

According to royal expert Nigel Cawthorne, the prince will likely become the main physical presence for the British Monarchy while the Queen and Prince Charles continue to socially isolate for their own safety.

"There has to be a physical presence to the monarchy, not just a virtual one. He's third-in-line to the throne and in robust health like his brother, and COVID-19 is unlikely to be any serious threat for him or his wife or children. He will do a great job," the biographer told the Daily Mail.

The seriousness of the situation might see Prince Harry stepping back into his royal role as Prince William and Prince Harry help to maintain the British Institution.

"I am sure he would come back and be delighted to help out, too, and do anything to protect his father and grandmother," the royal expert added.

The news came after the Queen shared a sweet message in support for the world during this unsettling period, after confirming that her and Philip are at Windsor.

"At times such as these, I am reminded that our nation's history has been forged by people and communities coming together to work as one, concentrating our combined efforts with a focus on the common goal."

She continued: "We are enormously thankful for the expertise and commitment of our scientists, medical practitioners and emergency and public services; but now more than any time in our recent past, we all have a vitally important part to play as individuals - today and in the coming days, weeks and months."

She ended with an empowering message, writing: "Many of us will need to find new ways of staying in touch with each other and making sure that loved ones are safe. I am certain we are up to that challenge. You can be assured that my family and I stand ready to play our part."