There is some discussion about the ordinal number. I expect it may be an issue in these times of sensitivity amongst some of the Spanish states.

Her's an article about it:

http://translate.google.co.uk/translate?hl=en&sl=es&u=http://jardindehipotesis.blogspot.com/2013/08/por-que-felipe-de-borbon-deberia-ser.html&prev=/search%3Fq%3Dfelipe%2Bvi%26client%3Dsafari%26hl%3Den