Prince George and sister Princess Charlotte are currently on a break from school and will be no doubt enjoying their summer holidays.
The youngsters are pupils at Thomas's Battersea - an independent prep school in South London - and when they return for the new year in a few weeks time they won't be the only royals running around in the playground.
That's because Maud Windsor, the eldest daughter of Lord Frederick Windsor, is in George's year at the school. Lord Freddie's dad is Prince Michael of Kent, the Queen's cousin.
And young Maud's mum, Sophie Winkleman, is also famous too - and she has a very well-known sister.
Sophie, who is also known as Lady Frederick Windsor, is a British actress, best known for playing Big Suze in Peep Show.
She's also appeared in The Palace and The Lion, the Witch and the Wardrobe and is the sister of Strictly Come Dancing host Claudia Winkleman.
When Maud was born in August 2013, just a month after George, she was 42nd in line to the throne.
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She shares a special connection with Prince Harry and Meghan Markle's new daughter Lilibet - as she too was born in the US.
Her full name is Maud Elizabeth Daphne Marina Windsor, and her parents picked Elizabeth in honour of the Queen.
Speaking about her name, Lord Freddie told Hello! in 2013: "We liked the idea of an old-fashioned English name and there are a couple of Princess Mauds in my father's family from a hundred years ago – one was the youngest daughter of Edward VII who ended up being Queen of Norway, and another a grand-daughter of Edward VII by his daughter Princess Louise.
"It's also a beautiful, elegant name and it was always our first choice."
George and Maud started at Thomas's on the same day in September 2017.
Lord Freddie married Sophie back in 2009 at the Chapel Royal at Hampton Court, south-west London.
Due to their lowly ranking in the line of succession, it's rare that we see Lord Freddie, Sophie, Maud or their youngest daughter Isabella at royal events.
However, Maud did join George and Charlotte when she was a bridesmaid at her godmother Princess Eugenie and Jack Brooksbank's wedding in 2018.
She also took on the role of bridesmaid alongside her younger sister at her aunt Lady Gabriella Windsor's wedding in May 2019.
