We now have a range of possible due dates for when Kate Middleton is due to give birth to a little brother or sister to Prince George. Beyond Clarence House's initial statement we don't know much about the pregnancy, but here are five things psychologists have found out about second children over the years.

Firstborn children are more likely to conform while younger siblings are more likely to be "independent" personalities, says a 2009 scientific study in the journal Child Development.

So, the new royal baby could be more likely to do a Prince Harry and be a bit rebellious, whereas George would be better-behaved, like his father William.

Second children are more likely to be rebellious

Five facts about second children

Here are some facts we found about second children, to try to predict what the second-born Royal baby's life will be like.

  1. Second-born children are more likely to be rebellious. Perhaps this means that the new baby will toe the line less than George is likely to. George also has more responsibility on his young shoulders as the first in line to the throne.
  2. Children who are born second are more likely to be competitive. Psychology Today suggests that this could be because they've always had a sibling to compare themselves to.
  3. Second born children are more likely to have better people skills. This could be why Prince Harry always finds himself at parties.
  4. Children born second are more likely to rely on friends more than family. Parents.com suggests that this is because second children are likely to feel left out by their parents.
  5. Second-born children are more likely to be leaders and entrepreneurs. This rings true - Winston Churchill, Abraham Lincoln, Bill Gates and Donald Trump were all second-born children.

Do you think that the new baby will be rebellious like second royal child Prince Harry? Does sibling position make a difference to people's personalities at all? Take our poll.

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