After nine months of waiting (that tends to be how these things work) Kate Middleton has given birth to her third child. The Duchess of Cambridge gave birth to a baby boy at 11.01am at the Lindo Wing, St Mary's Hospital.
But the arrival of the new baby won't just be exciting news for Prince William and Kate Middleton themselves; no doubt four-year-old Prince George and two-year-old Princess Charlotte are beyond excited to become older siblings to their new baby brother, too.
The news was announced by Kensington Palace on Twitter:
If the Duke and Duchess are to follow tradition, it won't be long before we catch a glimpse of their new bundle of joy. After giving birth to Charlotte in May 2015, William and Kate appeared with her at the entrance of the Lindo Wing less than 12 hours later.
It might be a little bit more of a wait to find out the details we're all after, though, like what the baby will be called. It took two days following the birth of Princess Charlotte for her name to be announced, and it was a similar amount of time with George.
Congratulations, William and Kate! Your new baby boy will be the perfect addition to Harry and Meghan's wedding next month!
This article originally appeared on Cosmopolitan.com/uk. Minor edits have been made by the Cosmo.ph editors.