Personally, I like monarchs with regnal numbers.
Leonor was Queen of Navarre in 1479
I believe the British is supposed to use the highest number for monarchs with the same name in England and Scotland.
Who is Queen Lenore I? I can't seem to recall her.
I believe that in Spain the highest regnsl number from the former kingdoms is used. Thus, Leonor will be Leonor II.
It’s sensible and I can’t see why it should not be used in Britain.
Please also see the original article in The Herald which I linked, and which does make the point that the late Queen chose an approach to this issue which relies on the highest number taken into account from both former kingdoms.
He may become the fifth king of his name to reign over the former kingdom of England and the second king of his name to reign over the former kingdom of Scotland but those kingdoms do not exist anymore. He will be William V of the United Kingdom, in Scotland and in England. The absence of a regnal number in a royal cypher does not mean that the monarch intends to be known as “the First”. He will not be “WIIR”.
http://europeanroyalhistory.wordpress.com/246