The royal baby has arrived!  And he'll be king someday.  The Duchess of Cambridge, Kate Middleton, and her Prince William welcomed a son at 4:24 p.m., weighing 8 lbs., 6 oz.

The new arrival is third in line to the throne, following the baby's father, William, and (first-in-line) grandfather, Prince Charles, 64. The public will get its first glimpse of the child when the couple leave the hospital in the coming days, reports People.com.

The child's name has not yet been revealed.