Wales is a principality of England, not a separate nation.... so there is nothing to prevent someone from Wales becoming King of England... and anyway, how did a Norman, and a dynasty of Germans become Kings of England - they got it by conquest, marriage and intrigue.
If you're asking how Charles, Prince of Wales, can become King of England... "Prince of Wales" is a traditional title granted to the heir apparent; it doesn't mean he's FROM Wales (he's actually considerably more German than Welsh).
William become the king.
William I, known as William the Conqueror, was king of England from 1066 to 1087.
No, he will be King (when it happens) of the United Kingdom
Genetics.
He was invited to become (joint) monarch.
William was crowned as King of England at Westminster Abbey in London on 25 December 1066.
Try saying that to a Welshman!
Yes, in 1066.
King Henry IV of England became king on 30 September 1399.
it was something to do with his teachers because he was to young to become king he became king when he was 9
Tony Blair never became king of england.
yes, but she can't become queen