If the Duke of Cambridge is looking for a little guidance on how to behave once he inherits the throne, he should head straight to the British Library.
Offering advice on the art of kingship, a set of manuscripts dating back to the 9th century is set to go on display there as part of a new exhibition. The manuscripts cover all aspects of a monarch's life, including what to eat, when to sleep and the cure for an upset stomach - a hot maiden.
The new exhibition will include manuals on royal etiquette, known as 'mirrors for princes' which were developed during the medieval period to advise monarchs how to rule themselves and their kingdoms.
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