Following the heartbreaking death of Queen Elizabeth II, there have been a lot of new titles bestowed within the Royal Family.
Immediately following Her Majesty's death, her eldest son became King Charles III, as confirmed by Clarence House.
Additionally, with her husband as king, Camilla became known as Queen Consort.
And in his first national address as the new monarch, King Charles III announced on Friday that his eldest son and heir apparent, William, would become the new Prince of Wales, with wife Catherine becoming the new Princess of Wales.
"Today, I am proud to create [William] Prince of Wales, Tywysog Cymru, the country whose title I have been so greatly privileged to bear during so much of my life and duty.
"With Catherine beside him, our new Prince and Princess of Wales will, I know, continue to inspire and lead our national conversations, helping to bring the marginal to the center ground where vital help can be given," the new king declared.
But with William and Kate adopting their new titles, so do their three children - Prince George, nine, Princess Charlotte, seven and Prince Louis, four - will also be known by different titles and names.
Officially, the children will be known as Prince George of Wales, Princess Charlotte of Wales, and Prince Louis of Wales.
At school, the three children were previously known as George Cambridge, Charlotte Cambridge and Louis Cambridge, respectively. However, their teachers and friends will now refer to them as George Wales, Charlotte Wales, and Louis Wales.
Per PEOPLE, the family of five currently lives in Adelaide Cottage in Windsor, with the children recently returning to their school in Lambrook.
Princess Catherine reportedly stayed with the three children as their father traveled to Balmoral to be with the Queen before her death on Thursday.
While speaking to well-wishers on Saturday, the Princess of Wales recalled what young Prince Louis had told her after she informed him that his great-grandmother had passed away.
Watch the moment below:Speaking to a group of children who had turned out on the Long Walk to pay their respects, Princess Catherine could be seen becoming teary-eyed as she recalled: "My little Louis, who's just so sweet, he said, 'mommy don't worry, because she's now with great grandpa'" - referring to Queen Elizabeth's late husband, Prince Philip, who died at the age of 99 in April last year.
As well as their titles changing, each child has also moved up in the line of succession to the throne - with George being second in line, Charlotte third, and Louis fourth.