Quite a few people have asked me what the newborn Prince George of Cambridge’s coat of arms will look like. The answer is: it won’t look like anything. At least not until he is 18. A coat of arms is devised for royal children when they come of age. Prince George won’t be 18 until the year 2031 by which time he may find himself in a very different position from being third in line to the throne. So, it’s a moot point until then.