Kate Middleton and Prince William Name Their Baby Charlotte Elizabeth Diana

The couple welcomed a princess on Saturday morning.

Her official title will be Her Royal Highness Princess Charlotte of Cambridge.

The naming of the second royal baby is similar in time frame to when the Duke and Duchess of Cambridge chose George Alexander Louis for their first child. George was born on July 22 and his name was released a little more than a day later.

Prince William's full name is William Arthur Philip Louis. When William was born on June 21, 1982, his parents didn't reveal his name until one week later. William's father, Prince Charles, was a month old before his name was made public.

William's brother, Harry, has been an exception. His name was announced on the day he was born.