It’s a BOY

Catherine, Duchess of Cambridge gave birth to a baby Boy. The baby was delivered at 4:24 BST at St Mary’s Hospital in Paddington, west London, weighing 8lb 6oz.

this is the picture of the official announcement that Her Royal Highness safely delivered a son

The baby is third in line for the throne now occupied by the queen. Her son, Charles, will succeed her, followed by his son, William.
Succession to the throne