Kate Middleton and Prince William will be throwing a birthday bash for their son Prince George on July 22, who turns one.
A spokesman for the palace told Us Magazine that the family is marking it privately with close family and friends at Kensington Palace.
Sources also said that the party will most likely be an indoor tea party that "may extend to the garden if the weather remains glorious."
The royal baby's great grandmother Queen Elizabeth, Uncle Prince Harry, and the Middleton family will be joining the party, while Prince Charles and Duchess Camilla will not be attending due to engagements in Scotland.