Princess Charlotte is officially an older sister! After going into labour early on April 23, the Duchess of Cambridge has given birth to her third child with Prince William. The royal couple welcomed their baby boy at 11:01 a.m. in the Lindo Wing of St. Mary's Hospital [1], where both Prince George and Princess Charlotte were also born. The little prince weighed 8 lb. 7 oz. Prince William was in in attendance for the birth of his son.

Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 1101hrs.

The baby weighs 8lbs 7oz.

The Duke of Cambridge was present for the birth.

Her Royal Highness and her child are both doing well.

— Kensington Palace (@KensingtonRoyal) April 23, 2018 [2]

The palace announced that Kate was expecting [3] back in Sept. 2017, and she performed a handful of royal duties and outings throughout her pregnancy [4]. It's a big month for Will and Kate, who will also be celebrating their seventh wedding anniversary [5] on April 29. Congrats to the royal couple on their growing family! Now we wait to find out what name they'll choose for their new bundle of joy [6].