According to Royal Historian Ed Owens, the Duke and Duchess will play an important role once the Queen steps down.
Queen Elizabeth II recently caused worry when she was forced to cancel a number of royal events due to illness.
As a result, many people have speculated about the monarch’s future, with speculation circulating that Prince Charles may ultimately take over.
Speaking to Express, he said: “Once Queen Elizabeth II is gone, all eyes will be on them.
“In many ways, Charles’ reign matters less than what comes after him.
“The Cambridges are the real ‘draw’ now for the monarchy.”