[quote=@Prince of Seraphs]
<Snipped quote by Onarax>

As could be considered common knowledge what would someone who does recognize his last name know? If his family is hunter related then chances are Sapphire would know it.
[/quote]

His family isn't really all that hunter related, granted there might be a few hunters in the family, but for most part it's business and wealth oriented. 

Plus he's from Mistral, so most people at Beacon probably wouldn't recognize it.