One of the world's highest profile couples - William and Kate (the Duke and Duchess of Cambridge) - have announced that they are expecting a child.
Due to Britain's constitutional changes, the child will become an heir to the crown, regardless of gender. The baby will be third in line to the throne, after its grandfather (Prince Charles) and father, moving Prince Harry to fourth in line.
Already buzzing are possible names for the child.
The most common names used by the British Royal Family are George and John for boys and Elizabeth, Sophie and Victoria for girls. There's a copy of the British Royal Family Tree available on MyHeritage.
What do you think the newborn's name might be?