When Prince William
turned 1, his parents weren't even with him on his birthday.
For his son, the world is very different. Prince George
might be third-in-line to the throne, but he'll be celebrating his birthday in a similar fashion to most other 1-year-olds: surrounded by family.
William and Kate
have invited great-granny Queen Elizabeth II to Tuesday's bash at their London home, Kensington Palace, PEOPLE has learned.
All the palace will say is that "close family and friends" have been invited to the bash. It's expected grandparents
Mike and Carole Middleton will be there at the couple's renovated Apartment 1a. But grandfather Prince Charles
and his wife Camilla, Duchess of Cornwall, will be in Scotland for a series of official engagements.
When he turned 1, William's parents Princess Diana
and Charles were on a lengthy tour of Canada and phoned home to talk to his nanny, who likely held the earpiece to the little prince's ear. birthday. “All I could hear was a few squeaks,” Charles reportedly told a student in Ottawa.
So what will George's party hold in store? Nothing especially out of the ordinary for the little royal, an expert tells PEOPLE.
"George won’t be aware of the significance of the occasion – the routine on his birthday will be exactly the same as any other day," says Sarah Dixon, a maternity nurse from Nanny and Butler who has worked with friends of the royal couple.
"He will get up at around 7 a.m. and will likely have two naps during the day, before he goes to bed at around 7 p.m. I imagine that Kate and William are very hands-on, but I'm sure the nanny will be present to help with nappy changes and assist Kate with any emergencies."
Claims that the Middletons were hosting a Peter Rabbit-themed party at their home in Bucklebury over the weekend were "substantially wrong" a royal source says. William was with his brother Harry playing polo for some of their charities at the home of Andrew Lloyd-Webber.
Concerning the scale of the celebrations, Dixon, who has worked with members of the UAE royal family, says, "U.K. royals tend to be more low-key – I'm sure that they will have a small party with close friends and family, but I don't think it will be like North [West]'s first birthday party
, which was on such a grand scale."
The young royals certainly keep a low profile while living at Apartment 1A at Kensington Palace, although Kate and George's nanny, Maria Teresa Turrion Borrallo
, often takes the toddler for a casual walk in the park in his black-and-champagne Maclaren Quest pushchair. "I think they are keen on him having as much of a normal upbringing as possible," Dixon says.
As for George, who we last saw walking with the help of his mom at Cirencester Polo Club, his father joked on Wednesday
that he's already picking up speed and "will be running faster than me very soon."
"George will be spending more time on his legs," Dixon says. "He might be raising his arms in the air to indicate that he wants to be picked up – it's a gorgeous age."
Gorgeous George indeed.
For more on Prince George's first year, pick up the new issue of PEOPLE, on newsstands now