In EB, the north of Italy there is an Aedui settlement.Mediolanun.
It's a game's problem, because when you move forward with the roman faction to the north you are pushed to a war with the aedui, that force to you into a war in the rest of the Galia because of the limits the AI diplomacy.
That's not true according to the historical events and it limits your options in the game.
I think, it could be better that place should be Eleuteroi or Boii faction.