| UPDATED: 20:55, Tue, Jan 19, 2021 Link copied Sign up for FREE now and never miss the top Royal stories again. SUBSCRIBE Invalid email When you subscribe we will use the information you provide to send you these newsletters. Sometimes they'll include recommendations for other related newsletters or services we offer. Our Privacy Notice explains more about how we use your data, and your rights. You can unsubscribe at any time. Prince Charles, 72, is the heir apparent to the British throne, as the Queen's eldest son. He has spent nearly all his life waiting to succeed his mother, but a royal expert has given a damning assessment of the Prince of Wales and claims he is not fit to be King.