My aunt, and great aunt were nicknamed "Mina" (pronounced Meena). I don't think it would be a great British Queen name. My other aunt Ethelwyn had a better British royal name, evocative of the Anglo-Saxon period before the Norman conquest. Alfred, as stated in a post above, was the greatest pre-Conquest king of England, but I don't think the "Fred" diminutive will do well. We do have a GREAT theater singer, Alfie Boe, the greatest of the portrayers of Jean Valjean in Les Miserables (get the CD on the 25th anniversary presentation of Les Mis to see).