The DNA typing leaves no room for doubt in this matter, and the numerous other hypotheses of the grape's origin which have been forwarded during the years all completely lack support in the form of documentary evidence or ampelographic investigations, be it by methods of classical botany or DNA. Instead, they seem to have been based primarily or solely on the name or synonyms of the variety. Varying orthography for grape names render dubious any name-based evidence of origins. Nevertheless, origins such as Syracuse or the famous Iranian city of Shiraz have been proposed while the genomic studies had yet to be done.