By Matt Chorley, Mailonline Political Editor, Mark Duell and Amanda Williams PUBLISHED: 11:12 EST, 4 December 2012 | UPDATED: 03:08 EST, 5 December 2012 They played a key role when the young couple walked down the aisle. And now Prince Harry and Kate's sister, socialite Pippa Middleton, are favourite to become godparents to their child. It is no secret the siblings are two of the most important people in the young couple's life and if the royal tradition of appointing the best man and maid of honour from their wedding is observed they will definitely be offered the roles.
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The pair, who took lead roles at the wedding, are odds on to be named godparents
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Also in the running are William's old friends the van Cutsems and the van Straubenzees
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The Prince is godfather to several children and is expected to 'return the favour'
Prince William and Kate's child would move into third place, become more important than @placeholder and not be subject to the centuries-old law of primogeniture, which puts male heirs ahead of women.