The Duke and Duchess of Cambridge are now a very proud auntie and uncle after Pippa, 35, gave birth to a healthy baby boy yesterday.
Kensington Palace said in a short statement: "The Duke and Duchess of Cambridge are thrilled for Pippa and James."
Pippa, 35, delivered her firstborn at the Lindo Wing, the same maternity unit where the Duchess of Cambridge gave birth to her three children.
The baby boy was born on Monday at 1.58pm, weighing 8lb and 9oz, and will be the first cousin of Prince George, Princess Charlotte and Prince Louis.
It hasn't been confirmed whether the Cambridge's will visit Pippa and the baby boy at the Lindo Wing or if we will wait to see the beaming mother and the beautiful newborn once they return to their £17million Chelsea house. Read more from EXPRESS.