The Duchess of Cambridge will miss the society wedding of good friends this weekend as the final countdown to the birth of her baby begins.
It was rumoured Kate, who is more than eight months pregnant, would be at the wedding of Lady Melissa Percy and Thomas van Straubenzee.
The Duke and Duchess of Northumberland will host their daughters wedding tomorrow in their home town of Alnwick.
William and Prince Harry are expected to be among the congregation as they are long-time friend the groom.
The brothers were at the chartered surveyor's London stag do earlier this month.
The Duchess's final official public appearance was last weekend when she attended the Trooping the Colour ceremony with other members of the Royal Family.