2018年4月23號，肯星頓宮宣佈劍橋公爵夫人喺凌晨開始分娩，據報呢一日亦係實際嘅預產期。當日11點01分（英國夏令時，10:01 UTC），嘉芙蓮生咗重3.8公斤嘅男嬰。威廉王子全程侍產。醫療團隊由蓋伊·索普-比斯頓（Guy Thorpe-Beeston）率領。男嬰出世7個鐘之後，嘉芙蓮抱住佢一齊喺醫院嘅林都院區（Lindo Wing）外同世人見面。
On April 23, 2018, Kensington Palace announced that the Duchess of Cambridge had given birth in the early hours of the morning, which was reported to be the actual due date. At 11:01 (United Kingdom Daylight Time, 10:01 UTC), Gabrien gave birth to a baby boy weighing 3.8kg. Prince William served the whole process. The medical team was led by Guy Thorpe-Beeston ·. Seven hours after the baby boy was born, Gabrien carried him to the world outside the hospital's Lindo Wing.