Welcoming of their Royal Highnesses Prince William and Kate Middleton by the President of the Republic of Poland Andrzej Duda and Mrs Kornhauser-Duda at the Courtyard of the Presidential Palace on July 17, 2017 in Warsaw, Poland. William and Middleton, from the United Kingdom are visiting Warsaw and Gdansk.
Getty | Getty Images Poland

Royal Family Title Changes That Already Have And Could Still Happen

Yesterday, the world was rocked by the news of Queen Elizabeth II's passing. Despite it being a tragic occurrence, everyone in the Queen's inner circle had to jump to action immediately so that her position may be filled.

This means that Prince Charles became King Charles, though that's far from the only shifting of titles that have taken place in the past 24 hours.

A major transfer of power is taking place within the royal family.

Buckingham Palace.
Unsplash | Lea Fabienne

Now that the Queen has passed, the royal family will be shifted around quite a bit, starting with the previous Prince Charles as he will now take the throne in his mother's stead.

Charles going from Prince to King is only the first of the title changes that will take place.

Charles' transition had a few layers to it.

Prince Charles.
Wikimedia Commons | Dan Marsh

He had the option to choose between a few different names for his Kingly title, either Charles, George, Arthur, or Philip. He went with the former and the name he carried as Prince, making him officially King Charles III.

His wife, Camilla Parker Bowels, had her title changed from Duchess of Cornwall to Queen Consort.

William and Kate Middleton have already updated their titles as well.

Welcoming of their Royal Highnesses Prince William and Kate Middleton by the President of the Republic of Poland Andrzej Duda and Mrs Kornhauser-Duda at the Courtyard of the Presidential Palace on July 17, 2017 in Warsaw, Poland. William and Middleton, from the United Kingdom are visiting Warsaw and Gdansk.
Getty | Getty Images Poland

On Instagram, they're now labeled as the Duke and Duchess of Cornwall and Cambridge rather than just the Duke and Duchess of Cambridge.

It's expected they will go further and become the Prince and Princess of Wales.

That last detail has people talking.

A greyscale image of Princess Diana.
Wikimedia Commons | John MacIntyre

The last person to hold the title of Princess of Wales was the beloved Princess Diana.

"There have been inevitable comparisons between Catherine and the Princess of Wales ever since she got engaged to Prince William," said ET's royal family expert, Katie Nicholl.

Nicholl seems confident that Kate knows the weight of this, though.

"I think one of the Duchess of Cambridge's greatest successes has been creating a new role for herself away from the shadows of Princess Diana," she explained, "But of course, she was always going to inherit the title Princess of Wales [...] and she more than anyone will know that they are sizable shoes to fill."

h/t: ET