Lusitanic definitions of "Lusitanic" or "Lusitanian" may include medieval-to-modern Galicia, because the Portuguese people and Galician people share close linguistic and cultural ties, including pre-Roman Celtic ones. Modern Portuguese and the Galician language both derive from medieval Galician-Portuguese, and the term is a cultural classification more than a historic–geographical definition. Although, in Ancient Roman times, the Gallaeci were not part of Lusitania province, what became the Galician-Portuguese language developed from Vulgar Latin in Gallaecia, which comprised what is now Galicia, as well as north Portugal, the center of the development of post-Roman Portuguese culture. Later Portuguese use of the name "Lusitania"
Roman conquest of the Iberian peninsula of supplying the Numantines. He ravaged the countryside and started a siege of their main town, Pallantia. He persuaded Decimus Junius Brutus Callaicus, his brother-in-law who had carried out counterinsurgency operations in Lusitania and Gallaecia, to join him. Messengers from Rome arrived. They said that the senate was at a loss to know what he should seek a new war and warned him not to proceed. Aemilius carried on regardless. The siege of Pallantia dragged on and the Roman supplies failed. All pack animals and many men died. The Romans withdrew in a disorderly way at night. At dawn the