Kate Middleton is getting ready to make a big decision about her son Prince George's future. 

This is according to a new report from The Mirror.

The decision, according to the outlet, has to do with where to send Prince George to school, once his time at his current preparatory school comes to an end.

Insiders have revealed that Middleton is "heartbroken" about the decision.

Here is what is going on:

Prince George is currently attending Lambrook Preparatory School, but his time at this school is about to come to an end.

The question that is thus facing Princess Kate and Prince William is where to send George, and it appears that there is some disagreement on the subject.

The New York Post reports:

William wants his 11-year-old son to follow in his footsteps by attending the prestigious all-boys boarding school Eton, but according to royal sources, the princess would prefer her eldest son attend a mixed-sex school like Marlborough College in Wiltshire. Kate attended that school herself from 1996 to 2000.

What has Middleton "heartbroken" is that George seems to want to go to Eton.

"George is allegedly on board with the idea of going to Eton, but Kate is said to be 'heartbroken' at the thought. The mom-of-three thinks the elite school is too 'stuffy' for him," the Post reports.

"There's always the possibility of..."

The reporting has been confirmed by royal insiders.

Katie Nicholl explained to The Mirror:

Kate’s preference is for George to be at a co-educational school, so he can be with his siblings, which is what Kate experienced at Marlborough with her sister, Pippa, and brother, James. It was a very happy school life for her, but William has very fond memories of Eton, which has a long history with aristocrats and members of the royal family.

Nothing, though, has been set in stone just yet, and, according to Nicholl, there is the possibility that Middleton might end up getting her wish.

Nicholl explained:

There's always the possibility of traditions being changed. William and Harry didn't end up following in their father's footsteps by going to Gordonstoun [in Scotland], and it may be that George breaks the Eton mould and ends up somewhere else. Whatever happens, it'll be a decision made by William and Kate with George's best interests factored in.

We will have to see how this plays out. This all comes after Middleton's battle with cancer.