Possible Clues:

• Italian horse covering miles
• Foreign novel one formerly would have written in Latin
• Type of European city
• Like I, in some cases
• Like the numerals V and X
• Claudius or Caligula
• Sounds like what one may be doin' in the gloamin' in Italy
• Tacitus or Tiberius
• Caesar or Antony, e.g.
• Like Jupiter, but not Zeus