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"
Claudius, Duke of Lusitania the Franks and routed them, killing 5,000 and capturing 2,000, as well as their camp. According to Isidore of Seville, "nulla umquam in Hispaniis Gothorum uictoria uel maior in bello vel similis extitit": "No victory of the Goths in Spain was ever greater or even equal to it." The chronicler John of Biclarum, with even more excitement, exaggerated his figures to make Claudius, the next Gideon, defeat 60,000 Franks (the evil Midianites in the biblical metaphor) with merely 300 men. Claudius, Duke of Lusitania Claudius was a Hispano-Roman Catholic "dux" (duke) of Lusitania (or "dux Emeretensis civitatis") in the late