"William, Prince of Wales: A Quick Look at the Heir to the Royal Throne"

Prince William, the 41-year-old heir to the British throne, is expected to take on more public responsibilities as his father, King Charles III, battles cancer. He is first in line for the throne, followed by his children, Prince George, Princess Charlotte, and Prince Louis. The royal family uses the last name Mountbatten-Windsor, and Prince William's children may also use the surname "Sussex" reflecting their Duke and Duchess titles. Princess Kate is 42 years old, and their children, Prince George, Princess Charlotte, and Prince Louis, are 10, 8, and 5 years old, respectively.