Kensington Palace also tweeted that Prince George will begin to attend the Westacre Montessori School Nursery in Norfolk before the end of January.
A nursery spokesman said: “We are looking forward to welcoming George to our nursery”.
The Cambridge’ Royals have spent an increasing amount of time at Anmer Hall, their 10-bedroom country home on the Sandringham estate in Norfolk, despite taxpayers forking out £4.5 million to upgrade their official London residence at Kensington Palace.
The nursery is located in a private road which the royals hope will deter prying eyes.
The news came as Kensington Palace released a new photograph of the family together, the first time they have been pictured as a family since Princess Charlotte’s christening in the summer. Said photographer Chris Jelf in a press release accompanying the image.
“I thoroughly enjoyed photographing a very lovely family, although you have to be sharp as you don’t have long when there are two young children involved!”
The nursery, which has been running for 23 years, was Ofsted rated “good” at its last inspection in the summer and takes a maximum of 20 children.
Montessori schools have no grades or tests, and children of different ages are taught together and encouraged to work at their own pace.
He will start attending the nursery in January.