She's got arguably one of the best jobs in the world, looking after Kate Middleton and Prince William's children, so who exactly is the Royal Nanny?

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With the Duke and Duchess' third son, whose name is yet to be confirmed, born on Monday, it's no surprise that all eyes are on the Royal Nanny – Maria Teresa Turrion Borrallo – who already helps care for George, four, and Charlotte, two.

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Although it was thought that with three children under five Kate and Will would hire another pair of hands, an insider revealed the couple have decided to stick with their current set up.

"They didn't feel the need for an additional nanny," the source confirmed. "They feel they can handle everything with the same arrangement as before."

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Here's everything you need to know about the woman looking after the royal couple's children since 2014…

She lives with the family

Maria is a live-in nanny and resides in Kensington Palace with the family. She also travels with them during royal engagements and looks after the kids during special events. She was famously pictured holding Prince George up at a window at Buckingham Palace during the Trooping of the Colour in 2015. Bless! A close friend of hers once said "her life is totally dedicated to the family she is working with".

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She was born in Spain

The 47-year-old was born in Madrid but grew up in Palencia.

She's trained in martial arts

As you can imagine it's no easy feat becoming the Royal Nanny, so it's no surprise Maria attended Norland College in Bath – the best for childcare training and education – more than 20 years ago and still wears the coveted uniform for special events. Here, she will have learned Taekwondo, avoiding paparazzi, anti-terrorism training, driving in extreme weather – plus other useful skills.

She's great at buying gifts

Remember the adorable handmade bonnet Prince Charlotte wore when she was introduced to the world on the steps of the Lindo Wing in 2015? That was given to her by Maria, and was purchased from a clothing store in Spain. Kate once described her as "amazing".

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She loves a fun day out

Her favourite places to visit with the young royals include Hyde Park and Bucklebury Farm Park.