King Charles III has given Catherine, Princess of Wales, a new title that marks a first in the history of the British royal family. The new title is the latest sign of support between the king and the Princess of Wales, who announced in March that she is being treated for cancer. Charles is also undergoing cancer treatment. Link in bio for all the details. #TODAYShow #PrincessCatherine #KateMiddleton #RoyalFamily 📸: Max Mumby/Indigo/Getty Images