What was IGP Lisboa formerly known as?

IGP Lisboa was formerly known as Estremadura, which highlights the historical context of wine classification in this area of Portugal. The name "Estremadura" has been used for centuries and is tied to the region's traditional wine production.

In recent years, under the new classification system implemented by the European Union, which introduced the Indication Géographique Protégée (IGP) designation, many regions in Portugal underwent a name change to align better with modern marketing and recognition. By renaming it IGP Lisboa, the focus shifted to the capital city's influence and the wines associated with it.

The other options do not represent the previous name of IGP Lisboa. Lisboa Region and Estremadura Norte are either current designations or subdivisions within different classifications. Alentejo, while another wine-producing region in Portugal, is distinct and unrelated to Lisboa's former designation.