The couple’s third child will be adorned in the Honiton lace and white satin gown, first used at the christening of James, Viscount Severn in 2008.
The frilly cream outfit is a replica of the christening gown made for Queen Victoria’s eldest daughter and used for all royal baptisms until Lady Louise Windsor in 2004.
Along with Prince George and Princess Charlotte, the new royal baby will be the eighth child to be christened in the gown.
It was created by the Queens dresser, Angela Kelly and features all the same elements of the original gown.
And, reportedly the gown was even dipped in tea to give it an antique look.