Final answer:
The provided information does not mention any letters from Claudius to the King of England, so it is not possible to determine what the letters demanded.
Step-by-step explanation:
The question is asking what the letters from Claudius to the King of England demanded. However, the provided information does not mention any letters from Claudius to the King of England. Therefore, it is not possible to determine what the letters demanded based on the given information.