Fredo

Also a short form of Frediano.
https://www.behindthename.com/name/frediano

Also Piedmontese (diminutive of Aufrej). I know that Piedmontese is not an usage here in the main database. I've just noticed it.
https://it.m.wikibooks.org/wiki/Piemontese/Nomi_propri_di_persona