“Although the King is carrying out his duties with typical determination, he has had to accept limitations during his cancer treatment," royal biographer Sally Bedell Smith told People. "As a result William has been taking on more responsibilities, and he and Kate have been preparing for their future roles sooner than they would have expected.”

After completing chemotherapy, the Princess of Wales is navigating the expectations tied to her future role as Queen

Kate Middelton has spent the year battling cancer and now faces the possibility that she could become Queen sooner than she expected.