Which region of Italy is known for Polenta?

In the North of Italy, the answser is easy: Emilia -Romagna stands alone.

In the Centre and South it is less easy: definitely NOT Tuscany, nor the island of Sardegna.

But Lazio, Abbruzzi and Le Marche in the centre and Sicily, Puglia, Calabria could probably make quite a strong case for being "famous for pasta"