Why can't I build Latifundia in Italy?

[Aemilius Paulus]

Hmm, odd. You need the "Grant of Land" and "Colonial Farming" buildings before you can build the "Agricultural Estates" building. Once you have those, you need a "Small Market" to finally build the "Latifvndia". Make sure your Italic cities have those buildings. Other than that, I do not know.

EDIT: Ooops, gotta be faster next time.